Home / 13,517.28-20,282.40-6,588

Finding the Fourth Proportional to 13,517.28, 20,282.40 and 6,588

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Solution

The fourth proportional to 13,517.28, 20,282.40 and 6,588 is: 9,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.28 : 20,282.40 = 6,588 : x
  2. Step 2: Convert to fraction form
    13,517.28/20,282.40 = 6,588/x
  3. Step 3: Cross multiply
    13,517.28x = 20,282.40 × 6,588
  4. Step 4: Simplify right side
    13,517.28x = 133,620,451.20
  5. Step 5: Solve for x
    x = 133,620,451.20/13,517.28
  6. Step 6: Final answer
    x = 9,885.16

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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.