Home / 10,387.64-15,572.19-3,812.30

Finding the Fourth Proportional to 10,387.64, 15,572.19 and 3,812.30

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Solution

The fourth proportional to 10,387.64, 15,572.19 and 3,812.30 is: 5,715.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.64 : 15,572.19 = 3,812.30 : x
  2. Step 2: Convert to fraction form
    10,387.64/15,572.19 = 3,812.30/x
  3. Step 3: Cross multiply
    10,387.64x = 15,572.19 × 3,812.30
  4. Step 4: Simplify right side
    10,387.64x = 59,365,782.08
  5. Step 5: Solve for x
    x = 59,365,782.08/10,387.64
  6. Step 6: Final answer
    x = 5,715.04

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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.