Home / 8,180.20-12,302.70-7,337.80

Finding the Fourth Proportional to 8,180.20, 12,302.70 and 7,337.80

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Solution

The fourth proportional to 8,180.20, 12,302.70 and 7,337.80 is: 11,035.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.20 : 12,302.70 = 7,337.80 : x
  2. Step 2: Convert to fraction form
    8,180.20/12,302.70 = 7,337.80/x
  3. Step 3: Cross multiply
    8,180.20x = 12,302.70 × 7,337.80
  4. Step 4: Simplify right side
    8,180.20x = 90,274,752.06
  5. Step 5: Solve for x
    x = 90,274,752.06/8,180.20
  6. Step 6: Final answer
    x = 11,035.76

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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.