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Finding the Fourth Proportional to 18,877.92, 26,051.85 and 10,380.39

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Solution

The fourth proportional to 18,877.92, 26,051.85 and 10,380.39 is: 14,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.92 : 26,051.85 = 10,380.39 : x
  2. Step 2: Convert to fraction form
    18,877.92/26,051.85 = 10,380.39/x
  3. Step 3: Cross multiply
    18,877.92x = 26,051.85 × 10,380.39
  4. Step 4: Simplify right side
    18,877.92x = 270,428,363.22
  5. Step 5: Solve for x
    x = 270,428,363.22/18,877.92
  6. Step 6: Final answer
    x = 14,325.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.