Home / 15,013.62-20,718.96-8,207.82

Finding the Fourth Proportional to 15,013.62, 20,718.96 and 8,207.82

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Solution

The fourth proportional to 15,013.62, 20,718.96 and 8,207.82 is: 11,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013.62 : 20,718.96 = 8,207.82 : x
  2. Step 2: Convert to fraction form
    15,013.62/20,718.96 = 8,207.82/x
  3. Step 3: Cross multiply
    15,013.62x = 20,718.96 × 8,207.82
  4. Step 4: Simplify right side
    15,013.62x = 170,057,494.27
  5. Step 5: Solve for x
    x = 170,057,494.27/15,013.62
  6. Step 6: Final answer
    x = 11,326.88

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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.