Home / 8,138.29-11,232.71-5,300.73

Finding the Fourth Proportional to 8,138.29, 11,232.71 and 5,300.73

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Solution

The fourth proportional to 8,138.29, 11,232.71 and 5,300.73 is: 7,316.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.29 : 11,232.71 = 5,300.73 : x
  2. Step 2: Convert to fraction form
    8,138.29/11,232.71 = 5,300.73/x
  3. Step 3: Cross multiply
    8,138.29x = 11,232.71 × 5,300.73
  4. Step 4: Simplify right side
    8,138.29x = 59,541,562.88
  5. Step 5: Solve for x
    x = 59,541,562.88/8,138.29
  6. Step 6: Final answer
    x = 7,316.23

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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.