Home / 8,778.40-12,093.56-6,120.96

Finding the Fourth Proportional to 8,778.40, 12,093.56 and 6,120.96

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Solution

The fourth proportional to 8,778.40, 12,093.56 and 6,120.96 is: 8,432.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.40 : 12,093.56 = 6,120.96 : x
  2. Step 2: Convert to fraction form
    8,778.40/12,093.56 = 6,120.96/x
  3. Step 3: Cross multiply
    8,778.40x = 12,093.56 × 6,120.96
  4. Step 4: Simplify right side
    8,778.40x = 74,024,197.02
  5. Step 5: Solve for x
    x = 74,024,197.02/8,778.40
  6. Step 6: Final answer
    x = 8,432.54

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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.