Home / 18,663.35-25,755.42-10,279.85

Finding the Fourth Proportional to 18,663.35, 25,755.42 and 10,279.85

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Solution

The fourth proportional to 18,663.35, 25,755.42 and 10,279.85 is: 14,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.35 : 25,755.42 = 10,279.85 : x
  2. Step 2: Convert to fraction form
    18,663.35/25,755.42 = 10,279.85/x
  3. Step 3: Cross multiply
    18,663.35x = 25,755.42 × 10,279.85
  4. Step 4: Simplify right side
    18,663.35x = 264,761,725.51
  5. Step 5: Solve for x
    x = 264,761,725.51/18,663.35
  6. Step 6: Final answer
    x = 14,186.19

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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.