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Finding the Fourth Proportional to 8,590.07, 12,872.95 and 3,654.74

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Solution

The fourth proportional to 8,590.07, 12,872.95 and 3,654.74 is: 5,476.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.07 : 12,872.95 = 3,654.74 : x
  2. Step 2: Convert to fraction form
    8,590.07/12,872.95 = 3,654.74/x
  3. Step 3: Cross multiply
    8,590.07x = 12,872.95 × 3,654.74
  4. Step 4: Simplify right side
    8,590.07x = 47,047,253.10
  5. Step 5: Solve for x
    x = 47,047,253.10/8,590.07
  6. Step 6: Final answer
    x = 5,476.94

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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.