Home / 16,691.97-23,035.29-9,138.62

Finding the Fourth Proportional to 16,691.97, 23,035.29 and 9,138.62

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Solution

The fourth proportional to 16,691.97, 23,035.29 and 9,138.62 is: 12,611.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.97 : 23,035.29 = 9,138.62 : x
  2. Step 2: Convert to fraction form
    16,691.97/23,035.29 = 9,138.62/x
  3. Step 3: Cross multiply
    16,691.97x = 23,035.29 × 9,138.62
  4. Step 4: Simplify right side
    16,691.97x = 210,510,785.22
  5. Step 5: Solve for x
    x = 210,510,785.22/16,691.97
  6. Step 6: Final answer
    x = 12,611.50

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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.