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Finding the Fourth Proportional to 9,240.78, 12,755.98 and 6,104.46

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Solution

The fourth proportional to 9,240.78, 12,755.98 and 6,104.46 is: 8,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.78 : 12,755.98 = 6,104.46 : x
  2. Step 2: Convert to fraction form
    9,240.78/12,755.98 = 6,104.46/x
  3. Step 3: Cross multiply
    9,240.78x = 12,755.98 × 6,104.46
  4. Step 4: Simplify right side
    9,240.78x = 77,868,369.67
  5. Step 5: Solve for x
    x = 77,868,369.67/9,240.78
  6. Step 6: Final answer
    x = 8,426.60

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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.