Home / 9,231.82-12,739.92-5,040.06

Finding the Fourth Proportional to 9,231.82, 12,739.92 and 5,040.06

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Solution

The fourth proportional to 9,231.82, 12,739.92 and 5,040.06 is: 6,955.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.82 : 12,739.92 = 5,040.06 : x
  2. Step 2: Convert to fraction form
    9,231.82/12,739.92 = 5,040.06/x
  3. Step 3: Cross multiply
    9,231.82x = 12,739.92 × 5,040.06
  4. Step 4: Simplify right side
    9,231.82x = 64,209,961.20
  5. Step 5: Solve for x
    x = 64,209,961.20/9,231.82
  6. Step 6: Final answer
    x = 6,955.29

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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.