Home / 12,986.92-17,924.25-7,684.66

Finding the Fourth Proportional to 12,986.92, 17,924.25 and 7,684.66

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Solution

The fourth proportional to 12,986.92, 17,924.25 and 7,684.66 is: 10,606.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986.92 : 17,924.25 = 7,684.66 : x
  2. Step 2: Convert to fraction form
    12,986.92/17,924.25 = 7,684.66/x
  3. Step 3: Cross multiply
    12,986.92x = 17,924.25 × 7,684.66
  4. Step 4: Simplify right side
    12,986.92x = 137,741,767.01
  5. Step 5: Solve for x
    x = 137,741,767.01/12,986.92
  6. Step 6: Final answer
    x = 10,606.19

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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.