Home / 8,601.21-11,872.19-5,617.50

Finding the Fourth Proportional to 8,601.21, 11,872.19 and 5,617.50

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Solution

The fourth proportional to 8,601.21, 11,872.19 and 5,617.50 is: 7,753.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.21 : 11,872.19 = 5,617.50 : x
  2. Step 2: Convert to fraction form
    8,601.21/11,872.19 = 5,617.50/x
  3. Step 3: Cross multiply
    8,601.21x = 11,872.19 × 5,617.50
  4. Step 4: Simplify right side
    8,601.21x = 66,691,996.85
  5. Step 5: Solve for x
    x = 66,691,996.85/8,601.21
  6. Step 6: Final answer
    x = 7,753.79

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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.