Home / 8,176.08-12,265.56-2,989.20

Finding the Fourth Proportional to 8,176.08, 12,265.56 and 2,989.20

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Solution

The fourth proportional to 8,176.08, 12,265.56 and 2,989.20 is: 4,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.08 : 12,265.56 = 2,989.20 : x
  2. Step 2: Convert to fraction form
    8,176.08/12,265.56 = 2,989.20/x
  3. Step 3: Cross multiply
    8,176.08x = 12,265.56 × 2,989.20
  4. Step 4: Simplify right side
    8,176.08x = 36,664,211.95
  5. Step 5: Solve for x
    x = 36,664,211.95/8,176.08
  6. Step 6: Final answer
    x = 4,484.33

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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.