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Finding the Fourth Proportional to 9,292.47, 12,819.11 and 6,151.29

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Solution

The fourth proportional to 9,292.47, 12,819.11 and 6,151.29 is: 8,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,292.47 : 12,819.11 = 6,151.29 : x
  2. Step 2: Convert to fraction form
    9,292.47/12,819.11 = 6,151.29/x
  3. Step 3: Cross multiply
    9,292.47x = 12,819.11 × 6,151.29
  4. Step 4: Simplify right side
    9,292.47x = 78,854,032.40
  5. Step 5: Solve for x
    x = 78,854,032.40/9,292.47
  6. Step 6: Final answer
    x = 8,485.80

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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.