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Finding the Fourth Proportional to 12,358.52, 17,040.38 and 9,002.85

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Solution

The fourth proportional to 12,358.52, 17,040.38 and 9,002.85 is: 12,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.52 : 17,040.38 = 9,002.85 : x
  2. Step 2: Convert to fraction form
    12,358.52/17,040.38 = 9,002.85/x
  3. Step 3: Cross multiply
    12,358.52x = 17,040.38 × 9,002.85
  4. Step 4: Simplify right side
    12,358.52x = 153,411,876.17
  5. Step 5: Solve for x
    x = 153,411,876.17/12,358.52
  6. Step 6: Final answer
    x = 12,413.45

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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.