Home / 13,279.28-18,340.57-9,023.23

Finding the Fourth Proportional to 13,279.28, 18,340.57 and 9,023.23

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Solution

The fourth proportional to 13,279.28, 18,340.57 and 9,023.23 is: 12,462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.28 : 18,340.57 = 9,023.23 : x
  2. Step 2: Convert to fraction form
    13,279.28/18,340.57 = 9,023.23/x
  3. Step 3: Cross multiply
    13,279.28x = 18,340.57 × 9,023.23
  4. Step 4: Simplify right side
    13,279.28x = 165,491,181.44
  5. Step 5: Solve for x
    x = 165,491,181.44/13,279.28
  6. Step 6: Final answer
    x = 12,462.36

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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.