Home / 13,711.04-20,553.60-12,453.92

Finding the Fourth Proportional to 13,711.04, 20,553.60 and 12,453.92

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Solution

The fourth proportional to 13,711.04, 20,553.60 and 12,453.92 is: 18,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.04 : 20,553.60 = 12,453.92 : x
  2. Step 2: Convert to fraction form
    13,711.04/20,553.60 = 12,453.92/x
  3. Step 3: Cross multiply
    13,711.04x = 20,553.60 × 12,453.92
  4. Step 4: Simplify right side
    13,711.04x = 255,972,890.11
  5. Step 5: Solve for x
    x = 255,972,890.11/13,711.04
  6. Step 6: Final answer
    x = 18,669.11

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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.