Home / 12,152.70-18,229.46-3,386.88

Finding the Fourth Proportional to 12,152.70, 18,229.46 and 3,386.88

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Solution

The fourth proportional to 12,152.70, 18,229.46 and 3,386.88 is: 5,080.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.70 : 18,229.46 = 3,386.88 : x
  2. Step 2: Convert to fraction form
    12,152.70/18,229.46 = 3,386.88/x
  3. Step 3: Cross multiply
    12,152.70x = 18,229.46 × 3,386.88
  4. Step 4: Simplify right side
    12,152.70x = 61,740,976.55
  5. Step 5: Solve for x
    x = 61,740,976.55/12,152.70
  6. Step 6: Final answer
    x = 5,080.43

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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.