Home / 26,439.82-39,659.12-7,719.10

Finding the Fourth Proportional to 26,439.82, 39,659.12 and 7,719.10

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Solution

The fourth proportional to 26,439.82, 39,659.12 and 7,719.10 is: 11,578.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,439.82 : 39,659.12 = 7,719.10 : x
  2. Step 2: Convert to fraction form
    26,439.82/39,659.12 = 7,719.10/x
  3. Step 3: Cross multiply
    26,439.82x = 39,659.12 × 7,719.10
  4. Step 4: Simplify right side
    26,439.82x = 306,132,713.19
  5. Step 5: Solve for x
    x = 306,132,713.19/26,439.82
  6. Step 6: Final answer
    x = 11,578.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.