Home / 12,427.74-17,145.66-7,392.16

Finding the Fourth Proportional to 12,427.74, 17,145.66 and 7,392.16

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Solution

The fourth proportional to 12,427.74, 17,145.66 and 7,392.16 is: 10,198.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.74 : 17,145.66 = 7,392.16 : x
  2. Step 2: Convert to fraction form
    12,427.74/17,145.66 = 7,392.16/x
  3. Step 3: Cross multiply
    12,427.74x = 17,145.66 × 7,392.16
  4. Step 4: Simplify right side
    12,427.74x = 126,743,462.03
  5. Step 5: Solve for x
    x = 126,743,462.03/12,427.74
  6. Step 6: Final answer
    x = 10,198.43

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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.