Home / 18,257.45-27,387.14-5,778.79

Finding the Fourth Proportional to 18,257.45, 27,387.14 and 5,778.79

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Solution

The fourth proportional to 18,257.45, 27,387.14 and 5,778.79 is: 8,668.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.45 : 27,387.14 = 5,778.79 : x
  2. Step 2: Convert to fraction form
    18,257.45/27,387.14 = 5,778.79/x
  3. Step 3: Cross multiply
    18,257.45x = 27,387.14 × 5,778.79
  4. Step 4: Simplify right side
    18,257.45x = 158,264,433.40
  5. Step 5: Solve for x
    x = 158,264,433.40/18,257.45
  6. Step 6: Final answer
    x = 8,668.49

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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.