Home / 13,671.29-20,508.06-3,810.66

Finding the Fourth Proportional to 13,671.29, 20,508.06 and 3,810.66

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Solution

The fourth proportional to 13,671.29, 20,508.06 and 3,810.66 is: 5,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.29 : 20,508.06 = 3,810.66 : x
  2. Step 2: Convert to fraction form
    13,671.29/20,508.06 = 3,810.66/x
  3. Step 3: Cross multiply
    13,671.29x = 20,508.06 × 3,810.66
  4. Step 4: Simplify right side
    13,671.29x = 78,149,243.92
  5. Step 5: Solve for x
    x = 78,149,243.92/13,671.29
  6. Step 6: Final answer
    x = 5,716.31

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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.