Home / 18,663.90-25,755.68-10,165.86

Finding the Fourth Proportional to 18,663.90, 25,755.68 and 10,165.86

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Solution

The fourth proportional to 18,663.90, 25,755.68 and 10,165.86 is: 14,028.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.90 : 25,755.68 = 10,165.86 : x
  2. Step 2: Convert to fraction form
    18,663.90/25,755.68 = 10,165.86/x
  3. Step 3: Cross multiply
    18,663.90x = 25,755.68 × 10,165.86
  4. Step 4: Simplify right side
    18,663.90x = 261,828,586.26
  5. Step 5: Solve for x
    x = 261,828,586.26/18,663.90
  6. Step 6: Final answer
    x = 14,028.61

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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.