Home / 18,663.38-25,755.46-10,279.88

Finding the Fourth Proportional to 18,663.38, 25,755.46 and 10,279.88

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Solution

The fourth proportional to 18,663.38, 25,755.46 and 10,279.88 is: 14,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.38 : 25,755.46 = 10,279.88 : x
  2. Step 2: Convert to fraction form
    18,663.38/25,755.46 = 10,279.88/x
  3. Step 3: Cross multiply
    18,663.38x = 25,755.46 × 10,279.88
  4. Step 4: Simplify right side
    18,663.38x = 264,763,038.14
  5. Step 5: Solve for x
    x = 264,763,038.14/18,663.38
  6. Step 6: Final answer
    x = 14,186.23

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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.