Home / 7,136.38-9,847.68-4,151.70

Finding the Fourth Proportional to 7,136.38, 9,847.68 and 4,151.70

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Solution

The fourth proportional to 7,136.38, 9,847.68 and 4,151.70 is: 5,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.38 : 9,847.68 = 4,151.70 : x
  2. Step 2: Convert to fraction form
    7,136.38/9,847.68 = 4,151.70/x
  3. Step 3: Cross multiply
    7,136.38x = 9,847.68 × 4,151.70
  4. Step 4: Simplify right side
    7,136.38x = 40,884,597.49
  5. Step 5: Solve for x
    x = 40,884,597.49/7,136.38
  6. Step 6: Final answer
    x = 5,729.04

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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.