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Finding the Fourth Proportional to 18,590, 25,654.20 and 10,207.04

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Solution

The fourth proportional to 18,590, 25,654.20 and 10,207.04 is: 14,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590 : 25,654.20 = 10,207.04 : x
  2. Step 2: Convert to fraction form
    18,590/25,654.20 = 10,207.04/x
  3. Step 3: Cross multiply
    18,590x = 25,654.20 × 10,207.04
  4. Step 4: Simplify right side
    18,590x = 261,853,445.57
  5. Step 5: Solve for x
    x = 261,853,445.57/18,590
  6. Step 6: Final answer
    x = 14,085.72

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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.