Home / 15,002.86-22,517.82-7,988.73

Finding the Fourth Proportional to 15,002.86, 22,517.82 and 7,988.73

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Solution

The fourth proportional to 15,002.86, 22,517.82 and 7,988.73 is: 11,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.86 : 22,517.82 = 7,988.73 : x
  2. Step 2: Convert to fraction form
    15,002.86/22,517.82 = 7,988.73/x
  3. Step 3: Cross multiply
    15,002.86x = 22,517.82 × 7,988.73
  4. Step 4: Simplify right side
    15,002.86x = 179,888,784.17
  5. Step 5: Solve for x
    x = 179,888,784.17/15,002.86
  6. Step 6: Final answer
    x = 11,990.30

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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.