Home / 10,791.20-16,211.10-10,499.60

Finding the Fourth Proportional to 10,791.20, 16,211.10 and 10,499.60

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Solution

The fourth proportional to 10,791.20, 16,211.10 and 10,499.60 is: 15,773.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.20 : 16,211.10 = 10,499.60 : x
  2. Step 2: Convert to fraction form
    10,791.20/16,211.10 = 10,499.60/x
  3. Step 3: Cross multiply
    10,791.20x = 16,211.10 × 10,499.60
  4. Step 4: Simplify right side
    10,791.20x = 170,210,065.56
  5. Step 5: Solve for x
    x = 170,210,065.56/10,791.20
  6. Step 6: Final answer
    x = 15,773.04

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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.