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Finding the Fourth Proportional to 8,910.60, 13,360.18 and 4,522

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Solution

The fourth proportional to 8,910.60, 13,360.18 and 4,522 is: 6,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.60 : 13,360.18 = 4,522 : x
  2. Step 2: Convert to fraction form
    8,910.60/13,360.18 = 4,522/x
  3. Step 3: Cross multiply
    8,910.60x = 13,360.18 × 4,522
  4. Step 4: Simplify right side
    8,910.60x = 60,414,733.96
  5. Step 5: Solve for x
    x = 60,414,733.96/8,910.60
  6. Step 6: Final answer
    x = 6,780.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.