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Finding the Fourth Proportional to 12,552.71, 18,829.05 and 4,761.51

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Solution

The fourth proportional to 12,552.71, 18,829.05 and 4,761.51 is: 7,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.71 : 18,829.05 = 4,761.51 : x
  2. Step 2: Convert to fraction form
    12,552.71/18,829.05 = 4,761.51/x
  3. Step 3: Cross multiply
    12,552.71x = 18,829.05 × 4,761.51
  4. Step 4: Simplify right side
    12,552.71x = 89,654,709.87
  5. Step 5: Solve for x
    x = 89,654,709.87/12,552.71
  6. Step 6: Final answer
    x = 7,142.26

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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.