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Finding the Fourth Proportional to 9,354.79, 12,894.13 and 6,625.78

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Solution

The fourth proportional to 9,354.79, 12,894.13 and 6,625.78 is: 9,132.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.79 : 12,894.13 = 6,625.78 : x
  2. Step 2: Convert to fraction form
    9,354.79/12,894.13 = 6,625.78/x
  3. Step 3: Cross multiply
    9,354.79x = 12,894.13 × 6,625.78
  4. Step 4: Simplify right side
    9,354.79x = 85,433,635.54
  5. Step 5: Solve for x
    x = 85,433,635.54/9,354.79
  6. Step 6: Final answer
    x = 9,132.61

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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.