Home / 10,974.67-15,145.13-6,195.78

Finding the Fourth Proportional to 10,974.67, 15,145.13 and 6,195.78

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Solution

The fourth proportional to 10,974.67, 15,145.13 and 6,195.78 is: 8,550.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,974.67 : 15,145.13 = 6,195.78 : x
  2. Step 2: Convert to fraction form
    10,974.67/15,145.13 = 6,195.78/x
  3. Step 3: Cross multiply
    10,974.67x = 15,145.13 × 6,195.78
  4. Step 4: Simplify right side
    10,974.67x = 93,835,893.55
  5. Step 5: Solve for x
    x = 93,835,893.55/10,974.67
  6. Step 6: Final answer
    x = 8,550.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.