Home / 10,081.56-15,122.32-2,686.02

Finding the Fourth Proportional to 10,081.56, 15,122.32 and 2,686.02

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Solution

The fourth proportional to 10,081.56, 15,122.32 and 2,686.02 is: 4,029.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.56 : 15,122.32 = 2,686.02 : x
  2. Step 2: Convert to fraction form
    10,081.56/15,122.32 = 2,686.02/x
  3. Step 3: Cross multiply
    10,081.56x = 15,122.32 × 2,686.02
  4. Step 4: Simplify right side
    10,081.56x = 40,618,853.97
  5. Step 5: Solve for x
    x = 40,618,853.97/10,081.56
  6. Step 6: Final answer
    x = 4,029.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.