Home / 15,330.17-21,154.33-8,615.27

Finding the Fourth Proportional to 15,330.17, 21,154.33 and 8,615.27

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Solution

The fourth proportional to 15,330.17, 21,154.33 and 8,615.27 is: 11,888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,330.17 : 21,154.33 = 8,615.27 : x
  2. Step 2: Convert to fraction form
    15,330.17/21,154.33 = 8,615.27/x
  3. Step 3: Cross multiply
    15,330.17x = 21,154.33 × 8,615.27
  4. Step 4: Simplify right side
    15,330.17x = 182,250,221.54
  5. Step 5: Solve for x
    x = 182,250,221.54/15,330.17
  6. Step 6: Final answer
    x = 11,888.34

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Double scale
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Similar ratio
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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.