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Finding the Fourth Proportional to 8,839.80, 13,252.95 and 4,460.40

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Solution

The fourth proportional to 8,839.80, 13,252.95 and 4,460.40 is: 6,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.80 : 13,252.95 = 4,460.40 : x
  2. Step 2: Convert to fraction form
    8,839.80/13,252.95 = 4,460.40/x
  3. Step 3: Cross multiply
    8,839.80x = 13,252.95 × 4,460.40
  4. Step 4: Simplify right side
    8,839.80x = 59,113,458.18
  5. Step 5: Solve for x
    x = 59,113,458.18/8,839.80
  6. Step 6: Final answer
    x = 6,687.19

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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.