Home / 8,121.52-12,182.28-2,924.56

Finding the Fourth Proportional to 8,121.52, 12,182.28 and 2,924.56

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Solution

The fourth proportional to 8,121.52, 12,182.28 and 2,924.56 is: 4,386.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.52 : 12,182.28 = 2,924.56 : x
  2. Step 2: Convert to fraction form
    8,121.52/12,182.28 = 2,924.56/x
  3. Step 3: Cross multiply
    8,121.52x = 12,182.28 × 2,924.56
  4. Step 4: Simplify right side
    8,121.52x = 35,627,808.80
  5. Step 5: Solve for x
    x = 35,627,808.80/8,121.52
  6. Step 6: Final answer
    x = 4,386.84

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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.