Home / 21,194.60-29,251.14-11,766.20

Finding the Fourth Proportional to 21,194.60, 29,251.14 and 11,766.20

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Solution

The fourth proportional to 21,194.60, 29,251.14 and 11,766.20 is: 16,238.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.60 : 29,251.14 = 11,766.20 : x
  2. Step 2: Convert to fraction form
    21,194.60/29,251.14 = 11,766.20/x
  3. Step 3: Cross multiply
    21,194.60x = 29,251.14 × 11,766.20
  4. Step 4: Simplify right side
    21,194.60x = 344,174,763.47
  5. Step 5: Solve for x
    x = 344,174,763.47/21,194.60
  6. Step 6: Final answer
    x = 16,238.79

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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.