Home / 18,255.30-27,386.33-5,778.47

Finding the Fourth Proportional to 18,255.30, 27,386.33 and 5,778.47

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Solution

The fourth proportional to 18,255.30, 27,386.33 and 5,778.47 is: 8,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.30 : 27,386.33 = 5,778.47 : x
  2. Step 2: Convert to fraction form
    18,255.30/27,386.33 = 5,778.47/x
  3. Step 3: Cross multiply
    18,255.30x = 27,386.33 × 5,778.47
  4. Step 4: Simplify right side
    18,255.30x = 158,251,086.32
  5. Step 5: Solve for x
    x = 158,251,086.32/18,255.30
  6. Step 6: Final answer
    x = 8,668.77

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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.