Home / 12,414.90-17,129.70-7,696.92

Finding the Fourth Proportional to 12,414.90, 17,129.70 and 7,696.92

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Solution

The fourth proportional to 12,414.90, 17,129.70 and 7,696.92 is: 10,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,414.90 : 17,129.70 = 7,696.92 : x
  2. Step 2: Convert to fraction form
    12,414.90/17,129.70 = 7,696.92/x
  3. Step 3: Cross multiply
    12,414.90x = 17,129.70 × 7,696.92
  4. Step 4: Simplify right side
    12,414.90x = 131,845,930.52
  5. Step 5: Solve for x
    x = 131,845,930.52/12,414.90
  6. Step 6: Final answer
    x = 10,619.98

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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.