Home / 13,951.79-20,909.87-6,539.92

Finding the Fourth Proportional to 13,951.79, 20,909.87 and 6,539.92

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Solution

The fourth proportional to 13,951.79, 20,909.87 and 6,539.92 is: 9,801.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.79 : 20,909.87 = 6,539.92 : x
  2. Step 2: Convert to fraction form
    13,951.79/20,909.87 = 6,539.92/x
  3. Step 3: Cross multiply
    13,951.79x = 20,909.87 × 6,539.92
  4. Step 4: Simplify right side
    13,951.79x = 136,748,792.04
  5. Step 5: Solve for x
    x = 136,748,792.04/13,951.79
  6. Step 6: Final answer
    x = 9,801.53

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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.