Home / 10,198.31-15,288.03-7,079.76

Finding the Fourth Proportional to 10,198.31, 15,288.03 and 7,079.76

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Solution

The fourth proportional to 10,198.31, 15,288.03 and 7,079.76 is: 10,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.31 : 15,288.03 = 7,079.76 : x
  2. Step 2: Convert to fraction form
    10,198.31/15,288.03 = 7,079.76/x
  3. Step 3: Cross multiply
    10,198.31x = 15,288.03 × 7,079.76
  4. Step 4: Simplify right side
    10,198.31x = 108,235,583.27
  5. Step 5: Solve for x
    x = 108,235,583.27/10,198.31
  6. Step 6: Final answer
    x = 10,613.10

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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.