Home / 18,318.18-25,279.20-11,242.02

Finding the Fourth Proportional to 18,318.18, 25,279.20 and 11,242.02

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Solution

The fourth proportional to 18,318.18, 25,279.20 and 11,242.02 is: 15,514.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.18 : 25,279.20 = 11,242.02 : x
  2. Step 2: Convert to fraction form
    18,318.18/25,279.20 = 11,242.02/x
  3. Step 3: Cross multiply
    18,318.18x = 25,279.20 × 11,242.02
  4. Step 4: Simplify right side
    18,318.18x = 284,189,271.98
  5. Step 5: Solve for x
    x = 284,189,271.98/18,318.18
  6. Step 6: Final answer
    x = 15,514.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.