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Finding the Fourth Proportional to 8,368.95, 12,553.04 and 3,687.71

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Solution

The fourth proportional to 8,368.95, 12,553.04 and 3,687.71 is: 5,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,368.95 : 12,553.04 = 3,687.71 : x
  2. Step 2: Convert to fraction form
    8,368.95/12,553.04 = 3,687.71/x
  3. Step 3: Cross multiply
    8,368.95x = 12,553.04 × 3,687.71
  4. Step 4: Simplify right side
    8,368.95x = 46,291,971.14
  5. Step 5: Solve for x
    x = 46,291,971.14/8,368.95
  6. Step 6: Final answer
    x = 5,531.40

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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.