Home / 6,974.85-10,437.20-5,121.38

Finding the Fourth Proportional to 6,974.85, 10,437.20 and 5,121.38

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Solution

The fourth proportional to 6,974.85, 10,437.20 and 5,121.38 is: 7,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,974.85 : 10,437.20 = 5,121.38 : x
  2. Step 2: Convert to fraction form
    6,974.85/10,437.20 = 5,121.38/x
  3. Step 3: Cross multiply
    6,974.85x = 10,437.20 × 5,121.38
  4. Step 4: Simplify right side
    6,974.85x = 53,452,827.95
  5. Step 5: Solve for x
    x = 53,452,827.95/6,974.85
  6. Step 6: Final answer
    x = 7,663.65

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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.