Home / 15,440.72-21,308.25-8,367.18

Finding the Fourth Proportional to 15,440.72, 21,308.25 and 8,367.18

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Solution

The fourth proportional to 15,440.72, 21,308.25 and 8,367.18 is: 11,546.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.72 : 21,308.25 = 8,367.18 : x
  2. Step 2: Convert to fraction form
    15,440.72/21,308.25 = 8,367.18/x
  3. Step 3: Cross multiply
    15,440.72x = 21,308.25 × 8,367.18
  4. Step 4: Simplify right side
    15,440.72x = 178,289,963.24
  5. Step 5: Solve for x
    x = 178,289,963.24/15,440.72
  6. Step 6: Final answer
    x = 11,546.74

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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.