Home / 9,703.60-13,395.17-6,121.78

Finding the Fourth Proportional to 9,703.60, 13,395.17 and 6,121.78

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Solution

The fourth proportional to 9,703.60, 13,395.17 and 6,121.78 is: 8,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703.60 : 13,395.17 = 6,121.78 : x
  2. Step 2: Convert to fraction form
    9,703.60/13,395.17 = 6,121.78/x
  3. Step 3: Cross multiply
    9,703.60x = 13,395.17 × 6,121.78
  4. Step 4: Simplify right side
    9,703.60x = 82,002,265.62
  5. Step 5: Solve for x
    x = 82,002,265.62/9,703.60
  6. Step 6: Final answer
    x = 8,450.71

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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.