Home / 13,780.47-20,654.30-9,597.83

Finding the Fourth Proportional to 13,780.47, 20,654.30 and 9,597.83

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Solution

The fourth proportional to 13,780.47, 20,654.30 and 9,597.83 is: 14,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.47 : 20,654.30 = 9,597.83 : x
  2. Step 2: Convert to fraction form
    13,780.47/20,654.30 = 9,597.83/x
  3. Step 3: Cross multiply
    13,780.47x = 20,654.30 × 9,597.83
  4. Step 4: Simplify right side
    13,780.47x = 198,236,308.91
  5. Step 5: Solve for x
    x = 198,236,308.91/13,780.47
  6. Step 6: Final answer
    x = 14,385.31

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1.5x scale

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.