Home / 8,715.49-13,073.11-2,141.61

Finding the Fourth Proportional to 8,715.49, 13,073.11 and 2,141.61

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Solution

The fourth proportional to 8,715.49, 13,073.11 and 2,141.61 is: 3,212.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.49 : 13,073.11 = 2,141.61 : x
  2. Step 2: Convert to fraction form
    8,715.49/13,073.11 = 2,141.61/x
  3. Step 3: Cross multiply
    8,715.49x = 13,073.11 × 2,141.61
  4. Step 4: Simplify right side
    8,715.49x = 27,997,534.31
  5. Step 5: Solve for x
    x = 27,997,534.31/8,715.49
  6. Step 6: Final answer
    x = 3,212.39

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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.