Home / 12,402.44-17,119.86-8,212.04

Finding the Fourth Proportional to 12,402.44, 17,119.86 and 8,212.04

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Solution

The fourth proportional to 12,402.44, 17,119.86 and 8,212.04 is: 11,335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.44 : 17,119.86 = 8,212.04 : x
  2. Step 2: Convert to fraction form
    12,402.44/17,119.86 = 8,212.04/x
  3. Step 3: Cross multiply
    12,402.44x = 17,119.86 × 8,212.04
  4. Step 4: Simplify right side
    12,402.44x = 140,588,975.11
  5. Step 5: Solve for x
    x = 140,588,975.11/12,402.44
  6. Step 6: Final answer
    x = 11,335.59

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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.