Home / 8,227.42-12,342.40-2,679.46

Finding the Fourth Proportional to 8,227.42, 12,342.40 and 2,679.46

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Solution

The fourth proportional to 8,227.42, 12,342.40 and 2,679.46 is: 4,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,227.42 : 12,342.40 = 2,679.46 : x
  2. Step 2: Convert to fraction form
    8,227.42/12,342.40 = 2,679.46/x
  3. Step 3: Cross multiply
    8,227.42x = 12,342.40 × 2,679.46
  4. Step 4: Simplify right side
    8,227.42x = 33,070,929.55
  5. Step 5: Solve for x
    x = 33,070,929.55/8,227.42
  6. Step 6: Final answer
    x = 4,019.60

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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.