Home / 9,118.76-12,583.95-5,344.16

Finding the Fourth Proportional to 9,118.76, 12,583.95 and 5,344.16

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Solution

The fourth proportional to 9,118.76, 12,583.95 and 5,344.16 is: 7,374.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.76 : 12,583.95 = 5,344.16 : x
  2. Step 2: Convert to fraction form
    9,118.76/12,583.95 = 5,344.16/x
  3. Step 3: Cross multiply
    9,118.76x = 12,583.95 × 5,344.16
  4. Step 4: Simplify right side
    9,118.76x = 67,250,642.23
  5. Step 5: Solve for x
    x = 67,250,642.23/9,118.76
  6. Step 6: Final answer
    x = 7,374.98

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Half scale
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Double scale
Find fourth proportional to 9,119.76, 12,585.33 and 5,345.16
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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.