Home / 9,231.71-12,739.75-5,039.96

Finding the Fourth Proportional to 9,231.71, 12,739.75 and 5,039.96

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Solution

The fourth proportional to 9,231.71, 12,739.75 and 5,039.96 is: 6,955.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.71 : 12,739.75 = 5,039.96 : x
  2. Step 2: Convert to fraction form
    9,231.71/12,739.75 = 5,039.96/x
  3. Step 3: Cross multiply
    9,231.71x = 12,739.75 × 5,039.96
  4. Step 4: Simplify right side
    9,231.71x = 64,207,805.21
  5. Step 5: Solve for x
    x = 64,207,805.21/9,231.71
  6. Step 6: Final answer
    x = 6,955.14

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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.