Home / 9,231-12,738.92-5,039.26

Finding the Fourth Proportional to 9,231, 12,738.92 and 5,039.26

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Solution

The fourth proportional to 9,231, 12,738.92 and 5,039.26 is: 6,954.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231 : 12,738.92 = 5,039.26 : x
  2. Step 2: Convert to fraction form
    9,231/12,738.92 = 5,039.26/x
  3. Step 3: Cross multiply
    9,231x = 12,738.92 × 5,039.26
  4. Step 4: Simplify right side
    9,231x = 64,194,730.00
  5. Step 5: Solve for x
    x = 64,194,730.00/9,231
  6. Step 6: Final answer
    x = 6,954.26

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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.