Home / 8,077.92-12,110.40-4,180.20

Finding the Fourth Proportional to 8,077.92, 12,110.40 and 4,180.20

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Solution

The fourth proportional to 8,077.92, 12,110.40 and 4,180.20 is: 6,266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.92 : 12,110.40 = 4,180.20 : x
  2. Step 2: Convert to fraction form
    8,077.92/12,110.40 = 4,180.20/x
  3. Step 3: Cross multiply
    8,077.92x = 12,110.40 × 4,180.20
  4. Step 4: Simplify right side
    8,077.92x = 50,623,894.08
  5. Step 5: Solve for x
    x = 50,623,894.08/8,077.92
  6. Step 6: Final answer
    x = 6,266.95

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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.