Home / 8,439.27-12,648.64-6,352.55

Finding the Fourth Proportional to 8,439.27, 12,648.64 and 6,352.55

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Solution

The fourth proportional to 8,439.27, 12,648.64 and 6,352.55 is: 9,521.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.27 : 12,648.64 = 6,352.55 : x
  2. Step 2: Convert to fraction form
    8,439.27/12,648.64 = 6,352.55/x
  3. Step 3: Cross multiply
    8,439.27x = 12,648.64 × 6,352.55
  4. Step 4: Simplify right side
    8,439.27x = 80,351,118.03
  5. Step 5: Solve for x
    x = 80,351,118.03/8,439.27
  6. Step 6: Final answer
    x = 9,521.10

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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.