Home / 12,553.08-18,829.62-4,761.90

Finding the Fourth Proportional to 12,553.08, 18,829.62 and 4,761.90

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Solution

The fourth proportional to 12,553.08, 18,829.62 and 4,761.90 is: 7,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.08 : 18,829.62 = 4,761.90 : x
  2. Step 2: Convert to fraction form
    12,553.08/18,829.62 = 4,761.90/x
  3. Step 3: Cross multiply
    12,553.08x = 18,829.62 × 4,761.90
  4. Step 4: Simplify right side
    12,553.08x = 89,664,696.87
  5. Step 5: Solve for x
    x = 89,664,696.87/12,553.08
  6. Step 6: Final answer
    x = 7,142.84

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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.