Home / 12,446.28-17,175.45-6,780.96

Finding the Fourth Proportional to 12,446.28, 17,175.45 and 6,780.96

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Solution

The fourth proportional to 12,446.28, 17,175.45 and 6,780.96 is: 9,357.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.28 : 17,175.45 = 6,780.96 : x
  2. Step 2: Convert to fraction form
    12,446.28/17,175.45 = 6,780.96/x
  3. Step 3: Cross multiply
    12,446.28x = 17,175.45 × 6,780.96
  4. Step 4: Simplify right side
    12,446.28x = 116,466,039.43
  5. Step 5: Solve for x
    x = 116,466,039.43/12,446.28
  6. Step 6: Final answer
    x = 9,357.50

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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.