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Finding the Fourth Proportional to 8,874.16, 12,246.36 and 4,895.20

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Solution

The fourth proportional to 8,874.16, 12,246.36 and 4,895.20 is: 6,755.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.16 : 12,246.36 = 4,895.20 : x
  2. Step 2: Convert to fraction form
    8,874.16/12,246.36 = 4,895.20/x
  3. Step 3: Cross multiply
    8,874.16x = 12,246.36 × 4,895.20
  4. Step 4: Simplify right side
    8,874.16x = 59,948,381.47
  5. Step 5: Solve for x
    x = 59,948,381.47/8,874.16
  6. Step 6: Final answer
    x = 6,755.39

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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.