Home / 8,080.49-12,118.36-3,148.95

Finding the Fourth Proportional to 8,080.49, 12,118.36 and 3,148.95

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Solution

The fourth proportional to 8,080.49, 12,118.36 and 3,148.95 is: 4,722.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.49 : 12,118.36 = 3,148.95 : x
  2. Step 2: Convert to fraction form
    8,080.49/12,118.36 = 3,148.95/x
  3. Step 3: Cross multiply
    8,080.49x = 12,118.36 × 3,148.95
  4. Step 4: Simplify right side
    8,080.49x = 38,160,079.43
  5. Step 5: Solve for x
    x = 38,160,079.43/8,080.49
  6. Step 6: Final answer
    x = 4,722.50

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Double scale
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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.