Home / 8,371.05-11,562.27-6,129.78

Finding the Fourth Proportional to 8,371.05, 11,562.27 and 6,129.78

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Solution

The fourth proportional to 8,371.05, 11,562.27 and 6,129.78 is: 8,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.05 : 11,562.27 = 6,129.78 : x
  2. Step 2: Convert to fraction form
    8,371.05/11,562.27 = 6,129.78/x
  3. Step 3: Cross multiply
    8,371.05x = 11,562.27 × 6,129.78
  4. Step 4: Simplify right side
    8,371.05x = 70,874,171.40
  5. Step 5: Solve for x
    x = 70,874,171.40/8,371.05
  6. Step 6: Final answer
    x = 8,466.58

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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.