Home / 8,371.12-11,557.16-5,231.56

Finding the Fourth Proportional to 8,371.12, 11,557.16 and 5,231.56

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Solution

The fourth proportional to 8,371.12, 11,557.16 and 5,231.56 is: 7,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.12 : 11,557.16 = 5,231.56 : x
  2. Step 2: Convert to fraction form
    8,371.12/11,557.16 = 5,231.56/x
  3. Step 3: Cross multiply
    8,371.12x = 11,557.16 × 5,231.56
  4. Step 4: Simplify right side
    8,371.12x = 60,461,975.97
  5. Step 5: Solve for x
    x = 60,461,975.97/8,371.12
  6. Step 6: Final answer
    x = 7,222.69

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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.