Home / 12,001.76-16,557.80-7,517.70

Finding the Fourth Proportional to 12,001.76, 16,557.80 and 7,517.70

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Solution

The fourth proportional to 12,001.76, 16,557.80 and 7,517.70 is: 10,371.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.76 : 16,557.80 = 7,517.70 : x
  2. Step 2: Convert to fraction form
    12,001.76/16,557.80 = 7,517.70/x
  3. Step 3: Cross multiply
    12,001.76x = 16,557.80 × 7,517.70
  4. Step 4: Simplify right side
    12,001.76x = 124,476,591.85
  5. Step 5: Solve for x
    x = 124,476,591.85/12,001.76
  6. Step 6: Final answer
    x = 10,371.53

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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.