Home / 10,507.92-14,500.85-5,727.78

Finding the Fourth Proportional to 10,507.92, 14,500.85 and 5,727.78

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Solution

The fourth proportional to 10,507.92, 14,500.85 and 5,727.78 is: 7,904.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.92 : 14,500.85 = 5,727.78 : x
  2. Step 2: Convert to fraction form
    10,507.92/14,500.85 = 5,727.78/x
  3. Step 3: Cross multiply
    10,507.92x = 14,500.85 × 5,727.78
  4. Step 4: Simplify right side
    10,507.92x = 83,057,649.97
  5. Step 5: Solve for x
    x = 83,057,649.97/10,507.92
  6. Step 6: Final answer
    x = 7,904.29

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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.