Home / 12,180.20-16,808.70-6,591.20

Finding the Fourth Proportional to 12,180.20, 16,808.70 and 6,591.20

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Solution

The fourth proportional to 12,180.20, 16,808.70 and 6,591.20 is: 9,095.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.20 : 16,808.70 = 6,591.20 : x
  2. Step 2: Convert to fraction form
    12,180.20/16,808.70 = 6,591.20/x
  3. Step 3: Cross multiply
    12,180.20x = 16,808.70 × 6,591.20
  4. Step 4: Simplify right side
    12,180.20x = 110,789,503.44
  5. Step 5: Solve for x
    x = 110,789,503.44/12,180.20
  6. Step 6: Final answer
    x = 9,095.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.