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Finding the Fourth Proportional to 9,963.80, 14,945.65 and 4,753.88

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Solution

The fourth proportional to 9,963.80, 14,945.65 and 4,753.88 is: 7,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.80 : 14,945.65 = 4,753.88 : x
  2. Step 2: Convert to fraction form
    9,963.80/14,945.65 = 4,753.88/x
  3. Step 3: Cross multiply
    9,963.80x = 14,945.65 × 4,753.88
  4. Step 4: Simplify right side
    9,963.80x = 71,049,826.62
  5. Step 5: Solve for x
    x = 71,049,826.62/9,963.80
  6. Step 6: Final answer
    x = 7,130.80

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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.