Home / 8,128.72-12,197.94-5,552.92

Finding the Fourth Proportional to 8,128.72, 12,197.94 and 5,552.92

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Solution

The fourth proportional to 8,128.72, 12,197.94 and 5,552.92 is: 8,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.72 : 12,197.94 = 5,552.92 : x
  2. Step 2: Convert to fraction form
    8,128.72/12,197.94 = 5,552.92/x
  3. Step 3: Cross multiply
    8,128.72x = 12,197.94 × 5,552.92
  4. Step 4: Simplify right side
    8,128.72x = 67,734,184.98
  5. Step 5: Solve for x
    x = 67,734,184.98/8,128.72
  6. Step 6: Final answer
    x = 8,332.70

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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.