Home / 8,613.05-11,882.82-5,425.49

Finding the Fourth Proportional to 8,613.05, 11,882.82 and 5,425.49

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Solution

The fourth proportional to 8,613.05, 11,882.82 and 5,425.49 is: 7,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.05 : 11,882.82 = 5,425.49 : x
  2. Step 2: Convert to fraction form
    8,613.05/11,882.82 = 5,425.49/x
  3. Step 3: Cross multiply
    8,613.05x = 11,882.82 × 5,425.49
  4. Step 4: Simplify right side
    8,613.05x = 64,470,121.08
  5. Step 5: Solve for x
    x = 64,470,121.08/8,613.05
  6. Step 6: Final answer
    x = 7,485.17

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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.