Home / 12,148.20-16,773.12-8,961.84

Finding the Fourth Proportional to 12,148.20, 16,773.12 and 8,961.84

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Solution

The fourth proportional to 12,148.20, 16,773.12 and 8,961.84 is: 12,373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.20 : 16,773.12 = 8,961.84 : x
  2. Step 2: Convert to fraction form
    12,148.20/16,773.12 = 8,961.84/x
  3. Step 3: Cross multiply
    12,148.20x = 16,773.12 × 8,961.84
  4. Step 4: Simplify right side
    12,148.20x = 150,318,017.74
  5. Step 5: Solve for x
    x = 150,318,017.74/12,148.20
  6. Step 6: Final answer
    x = 12,373.69

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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.