Home / 13,279.38-19,921.11-4,512.24

Finding the Fourth Proportional to 13,279.38, 19,921.11 and 4,512.24

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Solution

The fourth proportional to 13,279.38, 19,921.11 and 4,512.24 is: 6,769.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.38 : 19,921.11 = 4,512.24 : x
  2. Step 2: Convert to fraction form
    13,279.38/19,921.11 = 4,512.24/x
  3. Step 3: Cross multiply
    13,279.38x = 19,921.11 × 4,512.24
  4. Step 4: Simplify right side
    13,279.38x = 89,888,812.47
  5. Step 5: Solve for x
    x = 89,888,812.47/13,279.38
  6. Step 6: Final answer
    x = 6,769.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.