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Finding the Fourth Proportional to 12,387.03, 17,092.98 and 7,350.39

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Solution

The fourth proportional to 12,387.03, 17,092.98 and 7,350.39 is: 10,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.03 : 17,092.98 = 7,350.39 : x
  2. Step 2: Convert to fraction form
    12,387.03/17,092.98 = 7,350.39/x
  3. Step 3: Cross multiply
    12,387.03x = 17,092.98 × 7,350.39
  4. Step 4: Simplify right side
    12,387.03x = 125,640,069.26
  5. Step 5: Solve for x
    x = 125,640,069.26/12,387.03
  6. Step 6: Final answer
    x = 10,142.87

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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.