Home / 11,342.20-15,654.17-7,307.89

Finding the Fourth Proportional to 11,342.20, 15,654.17 and 7,307.89

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Solution

The fourth proportional to 11,342.20, 15,654.17 and 7,307.89 is: 10,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,342.20 : 15,654.17 = 7,307.89 : x
  2. Step 2: Convert to fraction form
    11,342.20/15,654.17 = 7,307.89/x
  3. Step 3: Cross multiply
    11,342.20x = 15,654.17 × 7,307.89
  4. Step 4: Simplify right side
    11,342.20x = 114,398,952.40
  5. Step 5: Solve for x
    x = 114,398,952.40/11,342.20
  6. Step 6: Final answer
    x = 10,086.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.