Home / 10,556.65-15,853.20-5,635.90

Finding the Fourth Proportional to 10,556.65, 15,853.20 and 5,635.90

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Solution

The fourth proportional to 10,556.65, 15,853.20 and 5,635.90 is: 8,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.65 : 15,853.20 = 5,635.90 : x
  2. Step 2: Convert to fraction form
    10,556.65/15,853.20 = 5,635.90/x
  3. Step 3: Cross multiply
    10,556.65x = 15,853.20 × 5,635.90
  4. Step 4: Simplify right side
    10,556.65x = 89,347,049.88
  5. Step 5: Solve for x
    x = 89,347,049.88/10,556.65
  6. Step 6: Final answer
    x = 8,463.58

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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.