Home / 15,016.49-20,722.43-8,301.74

Finding the Fourth Proportional to 15,016.49, 20,722.43 and 8,301.74

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Solution

The fourth proportional to 15,016.49, 20,722.43 and 8,301.74 is: 11,456.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.49 : 20,722.43 = 8,301.74 : x
  2. Step 2: Convert to fraction form
    15,016.49/20,722.43 = 8,301.74/x
  3. Step 3: Cross multiply
    15,016.49x = 20,722.43 × 8,301.74
  4. Step 4: Simplify right side
    15,016.49x = 172,032,259.73
  5. Step 5: Solve for x
    x = 172,032,259.73/15,016.49
  6. Step 6: Final answer
    x = 11,456.22

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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.