Home / 18,616.27-25,679.10-11,057.47

Finding the Fourth Proportional to 18,616.27, 25,679.10 and 11,057.47

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Solution

The fourth proportional to 18,616.27, 25,679.10 and 11,057.47 is: 15,252.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.27 : 25,679.10 = 11,057.47 : x
  2. Step 2: Convert to fraction form
    18,616.27/25,679.10 = 11,057.47/x
  3. Step 3: Cross multiply
    18,616.27x = 25,679.10 × 11,057.47
  4. Step 4: Simplify right side
    18,616.27x = 283,945,877.88
  5. Step 5: Solve for x
    x = 283,945,877.88/18,616.27
  6. Step 6: Final answer
    x = 15,252.57

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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.