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Finding the Fourth Proportional to 8,874, 12,246.36 and 4,895.40

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Solution

The fourth proportional to 8,874, 12,246.36 and 4,895.40 is: 6,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874 : 12,246.36 = 4,895.40 : x
  2. Step 2: Convert to fraction form
    8,874/12,246.36 = 4,895.40/x
  3. Step 3: Cross multiply
    8,874x = 12,246.36 × 4,895.40
  4. Step 4: Simplify right side
    8,874x = 59,950,830.74
  5. Step 5: Solve for x
    x = 59,950,830.74/8,874
  6. Step 6: Final answer
    x = 6,755.78

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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.