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Finding the Fourth Proportional to 12,500.10, 17,250.03 and 7,123.20

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Solution

The fourth proportional to 12,500.10, 17,250.03 and 7,123.20 is: 9,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.10 : 17,250.03 = 7,123.20 : x
  2. Step 2: Convert to fraction form
    12,500.10/17,250.03 = 7,123.20/x
  3. Step 3: Cross multiply
    12,500.10x = 17,250.03 × 7,123.20
  4. Step 4: Simplify right side
    12,500.10x = 122,875,413.70
  5. Step 5: Solve for x
    x = 122,875,413.70/12,500.10
  6. Step 6: Final answer
    x = 9,829.95

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Similar ratio
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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.