Home / 8,147.40-12,236.13-4,880.55

Finding the Fourth Proportional to 8,147.40, 12,236.13 and 4,880.55

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Solution

The fourth proportional to 8,147.40, 12,236.13 and 4,880.55 is: 7,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.40 : 12,236.13 = 4,880.55 : x
  2. Step 2: Convert to fraction form
    8,147.40/12,236.13 = 4,880.55/x
  3. Step 3: Cross multiply
    8,147.40x = 12,236.13 × 4,880.55
  4. Step 4: Simplify right side
    8,147.40x = 59,719,044.27
  5. Step 5: Solve for x
    x = 59,719,044.27/8,147.40
  6. Step 6: Final answer
    x = 7,329.83

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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.