Home / 12,182.91-18,274.87-3,862.74

Finding the Fourth Proportional to 12,182.91, 18,274.87 and 3,862.74

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Solution

The fourth proportional to 12,182.91, 18,274.87 and 3,862.74 is: 5,794.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.91 : 18,274.87 = 3,862.74 : x
  2. Step 2: Convert to fraction form
    12,182.91/18,274.87 = 3,862.74/x
  3. Step 3: Cross multiply
    12,182.91x = 18,274.87 × 3,862.74
  4. Step 4: Simplify right side
    12,182.91x = 70,591,020.18
  5. Step 5: Solve for x
    x = 70,591,020.18/12,182.91
  6. Step 6: Final answer
    x = 5,794.27

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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.