Home / 9,137.93-12,618.86-6,726.76

Finding the Fourth Proportional to 9,137.93, 12,618.86 and 6,726.76

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Solution

The fourth proportional to 9,137.93, 12,618.86 and 6,726.76 is: 9,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.93 : 12,618.86 = 6,726.76 : x
  2. Step 2: Convert to fraction form
    9,137.93/12,618.86 = 6,726.76/x
  3. Step 3: Cross multiply
    9,137.93x = 12,618.86 × 6,726.76
  4. Step 4: Simplify right side
    9,137.93x = 84,883,977.51
  5. Step 5: Solve for x
    x = 84,883,977.51/9,137.93
  6. Step 6: Final answer
    x = 9,289.20

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Find fourth proportional to 4,568.96, 6,309.43 and 3,363.38
Half scale
Find fourth proportional to 18,275.85, 25,237.71 and 13,453.52
Double scale
Find fourth proportional to 9,138.93, 12,620.24 and 6,727.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.