Home / 8,169.10-12,255.39-4,660.80

Finding the Fourth Proportional to 8,169.10, 12,255.39 and 4,660.80

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Solution

The fourth proportional to 8,169.10, 12,255.39 and 4,660.80 is: 6,992.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.10 : 12,255.39 = 4,660.80 : x
  2. Step 2: Convert to fraction form
    8,169.10/12,255.39 = 4,660.80/x
  3. Step 3: Cross multiply
    8,169.10x = 12,255.39 × 4,660.80
  4. Step 4: Simplify right side
    8,169.10x = 57,119,921.71
  5. Step 5: Solve for x
    x = 57,119,921.71/8,169.10
  6. Step 6: Final answer
    x = 6,992.19

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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.