Home / 8,192.42-12,288.52-5,778.19

Finding the Fourth Proportional to 8,192.42, 12,288.52 and 5,778.19

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Solution

The fourth proportional to 8,192.42, 12,288.52 and 5,778.19 is: 8,667.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,192.42 : 12,288.52 = 5,778.19 : x
  2. Step 2: Convert to fraction form
    8,192.42/12,288.52 = 5,778.19/x
  3. Step 3: Cross multiply
    8,192.42x = 12,288.52 × 5,778.19
  4. Step 4: Simplify right side
    8,192.42x = 71,005,403.38
  5. Step 5: Solve for x
    x = 71,005,403.38/8,192.42
  6. Step 6: Final answer
    x = 8,667.21

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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.