Home / 18,999.55-28,502.39-5,851.92

Finding the Fourth Proportional to 18,999.55, 28,502.39 and 5,851.92

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Solution

The fourth proportional to 18,999.55, 28,502.39 and 5,851.92 is: 8,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.55 : 28,502.39 = 5,851.92 : x
  2. Step 2: Convert to fraction form
    18,999.55/28,502.39 = 5,851.92/x
  3. Step 3: Cross multiply
    18,999.55x = 28,502.39 × 5,851.92
  4. Step 4: Simplify right side
    18,999.55x = 166,793,720.72
  5. Step 5: Solve for x
    x = 166,793,720.72/18,999.55
  6. Step 6: Final answer
    x = 8,778.82

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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.