Home / 11,729.39-17,545.45-8,934.91

Finding the Fourth Proportional to 11,729.39, 17,545.45 and 8,934.91

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Solution

The fourth proportional to 11,729.39, 17,545.45 and 8,934.91 is: 13,365.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.39 : 17,545.45 = 8,934.91 : x
  2. Step 2: Convert to fraction form
    11,729.39/17,545.45 = 8,934.91/x
  3. Step 3: Cross multiply
    11,729.39x = 17,545.45 × 8,934.91
  4. Step 4: Simplify right side
    11,729.39x = 156,766,971.98
  5. Step 5: Solve for x
    x = 156,766,971.98/11,729.39
  6. Step 6: Final answer
    x = 13,365.31

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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.