Home / 10,549.72-15,819.08-5,279.04

Finding the Fourth Proportional to 10,549.72, 15,819.08 and 5,279.04

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Solution

The fourth proportional to 10,549.72, 15,819.08 and 5,279.04 is: 7,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,549.72 : 15,819.08 = 5,279.04 : x
  2. Step 2: Convert to fraction form
    10,549.72/15,819.08 = 5,279.04/x
  3. Step 3: Cross multiply
    10,549.72x = 15,819.08 × 5,279.04
  4. Step 4: Simplify right side
    10,549.72x = 83,509,556.08
  5. Step 5: Solve for x
    x = 83,509,556.08/10,549.72
  6. Step 6: Final answer
    x = 7,915.81

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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.