Home / 18,581.27-25,616.86-13,266.86

Finding the Fourth Proportional to 18,581.27, 25,616.86 and 13,266.86

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Solution

The fourth proportional to 18,581.27, 25,616.86 and 13,266.86 is: 18,290.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.27 : 25,616.86 = 13,266.86 : x
  2. Step 2: Convert to fraction form
    18,581.27/25,616.86 = 13,266.86/x
  3. Step 3: Cross multiply
    18,581.27x = 25,616.86 × 13,266.86
  4. Step 4: Simplify right side
    18,581.27x = 339,855,134.01
  5. Step 5: Solve for x
    x = 339,855,134.01/18,581.27
  6. Step 6: Final answer
    x = 18,290.20

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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.