Home / 13,539.60-20,324-11,372.04

Finding the Fourth Proportional to 13,539.60, 20,324 and 11,372.04

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Solution

The fourth proportional to 13,539.60, 20,324 and 11,372.04 is: 17,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.60 : 20,324 = 11,372.04 : x
  2. Step 2: Convert to fraction form
    13,539.60/20,324 = 11,372.04/x
  3. Step 3: Cross multiply
    13,539.60x = 20,324 × 11,372.04
  4. Step 4: Simplify right side
    13,539.60x = 231,125,340.96
  5. Step 5: Solve for x
    x = 231,125,340.96/13,539.60
  6. Step 6: Final answer
    x = 17,070.32

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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.