Home / 18,178.20-27,255.66-8,686.62

Finding the Fourth Proportional to 18,178.20, 27,255.66 and 8,686.62

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Solution

The fourth proportional to 18,178.20, 27,255.66 and 8,686.62 is: 13,024.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.20 : 27,255.66 = 8,686.62 : x
  2. Step 2: Convert to fraction form
    18,178.20/27,255.66 = 8,686.62/x
  3. Step 3: Cross multiply
    18,178.20x = 27,255.66 × 8,686.62
  4. Step 4: Simplify right side
    18,178.20x = 236,759,561.27
  5. Step 5: Solve for x
    x = 236,759,561.27/18,178.20
  6. Step 6: Final answer
    x = 13,024.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.