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Finding the Fourth Proportional to 8,891.49, 13,340.48 and 4,731.87

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Solution

The fourth proportional to 8,891.49, 13,340.48 and 4,731.87 is: 7,099.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.49 : 13,340.48 = 4,731.87 : x
  2. Step 2: Convert to fraction form
    8,891.49/13,340.48 = 4,731.87/x
  3. Step 3: Cross multiply
    8,891.49x = 13,340.48 × 4,731.87
  4. Step 4: Simplify right side
    8,891.49x = 63,125,393.44
  5. Step 5: Solve for x
    x = 63,125,393.44/8,891.49
  6. Step 6: Final answer
    x = 7,099.53

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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.