Home / 8,778.42-12,093.48-6,121.08

Finding the Fourth Proportional to 8,778.42, 12,093.48 and 6,121.08

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Solution

The fourth proportional to 8,778.42, 12,093.48 and 6,121.08 is: 8,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.42 : 12,093.48 = 6,121.08 : x
  2. Step 2: Convert to fraction form
    8,778.42/12,093.48 = 6,121.08/x
  3. Step 3: Cross multiply
    8,778.42x = 12,093.48 × 6,121.08
  4. Step 4: Simplify right side
    8,778.42x = 74,025,158.56
  5. Step 5: Solve for x
    x = 74,025,158.56/8,778.42
  6. Step 6: Final answer
    x = 8,432.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.