Home / 8,934.71-12,331.17-5,157.14

Finding the Fourth Proportional to 8,934.71, 12,331.17 and 5,157.14

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Solution

The fourth proportional to 8,934.71, 12,331.17 and 5,157.14 is: 7,117.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.71 : 12,331.17 = 5,157.14 : x
  2. Step 2: Convert to fraction form
    8,934.71/12,331.17 = 5,157.14/x
  3. Step 3: Cross multiply
    8,934.71x = 12,331.17 × 5,157.14
  4. Step 4: Simplify right side
    8,934.71x = 63,593,508.40
  5. Step 5: Solve for x
    x = 63,593,508.40/8,934.71
  6. Step 6: Final answer
    x = 7,117.58

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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.