Home / 12,694.14-17,551.36-11,117.72

Finding the Fourth Proportional to 12,694.14, 17,551.36 and 11,117.72

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Solution

The fourth proportional to 12,694.14, 17,551.36 and 11,117.72 is: 15,371.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.14 : 17,551.36 = 11,117.72 : x
  2. Step 2: Convert to fraction form
    12,694.14/17,551.36 = 11,117.72/x
  3. Step 3: Cross multiply
    12,694.14x = 17,551.36 × 11,117.72
  4. Step 4: Simplify right side
    12,694.14x = 195,131,058.56
  5. Step 5: Solve for x
    x = 195,131,058.56/12,694.14
  6. Step 6: Final answer
    x = 15,371.74

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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.