Home / 15,016.59-20,722.43-8,302.20

Finding the Fourth Proportional to 15,016.59, 20,722.43 and 8,302.20

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Solution

The fourth proportional to 15,016.59, 20,722.43 and 8,302.20 is: 11,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.59 : 20,722.43 = 8,302.20 : x
  2. Step 2: Convert to fraction form
    15,016.59/20,722.43 = 8,302.20/x
  3. Step 3: Cross multiply
    15,016.59x = 20,722.43 × 8,302.20
  4. Step 4: Simplify right side
    15,016.59x = 172,041,701.39
  5. Step 5: Solve for x
    x = 172,041,701.39/15,016.59
  6. Step 6: Final answer
    x = 11,456.78

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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.