Home / 9,106.76-12,570.84-6,131.08

Finding the Fourth Proportional to 9,106.76, 12,570.84 and 6,131.08

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Solution

The fourth proportional to 9,106.76, 12,570.84 and 6,131.08 is: 8,463.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,106.76 : 12,570.84 = 6,131.08 : x
  2. Step 2: Convert to fraction form
    9,106.76/12,570.84 = 6,131.08/x
  3. Step 3: Cross multiply
    9,106.76x = 12,570.84 × 6,131.08
  4. Step 4: Simplify right side
    9,106.76x = 77,072,825.71
  5. Step 5: Solve for x
    x = 77,072,825.71/9,106.76
  6. Step 6: Final answer
    x = 8,463.25

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Half scale
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Double scale
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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.