Home / 8,116.20-12,180.48-3,187.08

Finding the Fourth Proportional to 8,116.20, 12,180.48 and 3,187.08

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Solution

The fourth proportional to 8,116.20, 12,180.48 and 3,187.08 is: 4,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.20 : 12,180.48 = 3,187.08 : x
  2. Step 2: Convert to fraction form
    8,116.20/12,180.48 = 3,187.08/x
  3. Step 3: Cross multiply
    8,116.20x = 12,180.48 × 3,187.08
  4. Step 4: Simplify right side
    8,116.20x = 38,820,164.20
  5. Step 5: Solve for x
    x = 38,820,164.20/8,116.20
  6. Step 6: Final answer
    x = 4,783.05

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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.