Home / 12,397.48-17,116.26-8,212.84

Finding the Fourth Proportional to 12,397.48, 17,116.26 and 8,212.84

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Solution

The fourth proportional to 12,397.48, 17,116.26 and 8,212.84 is: 11,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.48 : 17,116.26 = 8,212.84 : x
  2. Step 2: Convert to fraction form
    12,397.48/17,116.26 = 8,212.84/x
  3. Step 3: Cross multiply
    12,397.48x = 17,116.26 × 8,212.84
  4. Step 4: Simplify right side
    12,397.48x = 140,573,104.78
  5. Step 5: Solve for x
    x = 140,573,104.78/12,397.48
  6. Step 6: Final answer
    x = 11,338.85

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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.