Home / 18,370.23-25,350.87-9,986.73

Finding the Fourth Proportional to 18,370.23, 25,350.87 and 9,986.73

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Solution

The fourth proportional to 18,370.23, 25,350.87 and 9,986.73 is: 13,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.23 : 25,350.87 = 9,986.73 : x
  2. Step 2: Convert to fraction form
    18,370.23/25,350.87 = 9,986.73/x
  3. Step 3: Cross multiply
    18,370.23x = 25,350.87 × 9,986.73
  4. Step 4: Simplify right side
    18,370.23x = 253,172,293.96
  5. Step 5: Solve for x
    x = 253,172,293.96/18,370.23
  6. Step 6: Final answer
    x = 13,781.66

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Double scale
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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.