Home / 12,424.92-17,126.46-11,407.56

Finding the Fourth Proportional to 12,424.92, 17,126.46 and 11,407.56

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Solution

The fourth proportional to 12,424.92, 17,126.46 and 11,407.56 is: 15,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.92 : 17,126.46 = 11,407.56 : x
  2. Step 2: Convert to fraction form
    12,424.92/17,126.46 = 11,407.56/x
  3. Step 3: Cross multiply
    12,424.92x = 17,126.46 × 11,407.56
  4. Step 4: Simplify right side
    12,424.92x = 195,371,120.04
  5. Step 5: Solve for x
    x = 195,371,120.04/12,424.92
  6. Step 6: Final answer
    x = 15,724.14

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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.