Home / 12,610.96-17,402.88-8,631.97

Finding the Fourth Proportional to 12,610.96, 17,402.88 and 8,631.97

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Solution

The fourth proportional to 12,610.96, 17,402.88 and 8,631.97 is: 11,911.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.96 : 17,402.88 = 8,631.97 : x
  2. Step 2: Convert to fraction form
    12,610.96/17,402.88 = 8,631.97/x
  3. Step 3: Cross multiply
    12,610.96x = 17,402.88 × 8,631.97
  4. Step 4: Simplify right side
    12,610.96x = 150,221,138.07
  5. Step 5: Solve for x
    x = 150,221,138.07/12,610.96
  6. Step 6: Final answer
    x = 11,911.95

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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.