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Finding the Fourth Proportional to 8,488.96, 12,738.48 and 4,593.28

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Solution

The fourth proportional to 8,488.96, 12,738.48 and 4,593.28 is: 6,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.96 : 12,738.48 = 4,593.28 : x
  2. Step 2: Convert to fraction form
    8,488.96/12,738.48 = 4,593.28/x
  3. Step 3: Cross multiply
    8,488.96x = 12,738.48 × 4,593.28
  4. Step 4: Simplify right side
    8,488.96x = 58,511,405.41
  5. Step 5: Solve for x
    x = 58,511,405.41/8,488.96
  6. Step 6: Final answer
    x = 6,892.65

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1.5x scale

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.