Home / 18,381.11-27,572.57-5,234.40

Finding the Fourth Proportional to 18,381.11, 27,572.57 and 5,234.40

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Solution

The fourth proportional to 18,381.11, 27,572.57 and 5,234.40 is: 7,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.11 : 27,572.57 = 5,234.40 : x
  2. Step 2: Convert to fraction form
    18,381.11/27,572.57 = 5,234.40/x
  3. Step 3: Cross multiply
    18,381.11x = 27,572.57 × 5,234.40
  4. Step 4: Simplify right side
    18,381.11x = 144,325,834.24
  5. Step 5: Solve for x
    x = 144,325,834.24/18,381.11
  6. Step 6: Final answer
    x = 7,851.86

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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.