Home / 12,729.15-17,568.27-7,694.01

Finding the Fourth Proportional to 12,729.15, 17,568.27 and 7,694.01

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Solution

The fourth proportional to 12,729.15, 17,568.27 and 7,694.01 is: 10,618.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.15 : 17,568.27 = 7,694.01 : x
  2. Step 2: Convert to fraction form
    12,729.15/17,568.27 = 7,694.01/x
  3. Step 3: Cross multiply
    12,729.15x = 17,568.27 × 7,694.01
  4. Step 4: Simplify right side
    12,729.15x = 135,170,445.06
  5. Step 5: Solve for x
    x = 135,170,445.06/12,729.15
  6. Step 6: Final answer
    x = 10,618.97

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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.