Home / 18,663.39-25,755.45-10,279.89

Finding the Fourth Proportional to 18,663.39, 25,755.45 and 10,279.89

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Solution

The fourth proportional to 18,663.39, 25,755.45 and 10,279.89 is: 14,186.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.39 : 25,755.45 = 10,279.89 : x
  2. Step 2: Convert to fraction form
    18,663.39/25,755.45 = 10,279.89/x
  3. Step 3: Cross multiply
    18,663.39x = 25,755.45 × 10,279.89
  4. Step 4: Simplify right side
    18,663.39x = 264,763,192.90
  5. Step 5: Solve for x
    x = 264,763,192.90/18,663.39
  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.