Home / 10,331.91-15,490.14-4,086.81

Finding the Fourth Proportional to 10,331.91, 15,490.14 and 4,086.81

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Solution

The fourth proportional to 10,331.91, 15,490.14 and 4,086.81 is: 6,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331.91 : 15,490.14 = 4,086.81 : x
  2. Step 2: Convert to fraction form
    10,331.91/15,490.14 = 4,086.81/x
  3. Step 3: Cross multiply
    10,331.91x = 15,490.14 × 4,086.81
  4. Step 4: Simplify right side
    10,331.91x = 63,305,259.05
  5. Step 5: Solve for x
    x = 63,305,259.05/10,331.91
  6. Step 6: Final answer
    x = 6,127.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.