Home / 10,287.96-15,429.24-3,712.92

Finding the Fourth Proportional to 10,287.96, 15,429.24 and 3,712.92

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Solution

The fourth proportional to 10,287.96, 15,429.24 and 3,712.92 is: 5,568.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.96 : 15,429.24 = 3,712.92 : x
  2. Step 2: Convert to fraction form
    10,287.96/15,429.24 = 3,712.92/x
  3. Step 3: Cross multiply
    10,287.96x = 15,429.24 × 3,712.92
  4. Step 4: Simplify right side
    10,287.96x = 57,287,533.78
  5. Step 5: Solve for x
    x = 57,287,533.78/10,287.96
  6. Step 6: Final answer
    x = 5,568.41

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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.