Home / 8,671.24-13,005.38-3,123.54

Finding the Fourth Proportional to 8,671.24, 13,005.38 and 3,123.54

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Solution

The fourth proportional to 8,671.24, 13,005.38 and 3,123.54 is: 4,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.24 : 13,005.38 = 3,123.54 : x
  2. Step 2: Convert to fraction form
    8,671.24/13,005.38 = 3,123.54/x
  3. Step 3: Cross multiply
    8,671.24x = 13,005.38 × 3,123.54
  4. Step 4: Simplify right side
    8,671.24x = 40,622,824.65
  5. Step 5: Solve for x
    x = 40,622,824.65/8,671.24
  6. Step 6: Final answer
    x = 4,684.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.