Home / 8,168.20-12,284.70-7,325.80

Finding the Fourth Proportional to 8,168.20, 12,284.70 and 7,325.80

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Solution

The fourth proportional to 8,168.20, 12,284.70 and 7,325.80 is: 11,017.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.20 : 12,284.70 = 7,325.80 : x
  2. Step 2: Convert to fraction form
    8,168.20/12,284.70 = 7,325.80/x
  3. Step 3: Cross multiply
    8,168.20x = 12,284.70 × 7,325.80
  4. Step 4: Simplify right side
    8,168.20x = 89,995,255.26
  5. Step 5: Solve for x
    x = 89,995,255.26/8,168.20
  6. Step 6: Final answer
    x = 11,017.76

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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.