Home / 13,382.10-20,063.19-8,118.27

Finding the Fourth Proportional to 13,382.10, 20,063.19 and 8,118.27

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Solution

The fourth proportional to 13,382.10, 20,063.19 and 8,118.27 is: 12,171.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.10 : 20,063.19 = 8,118.27 : x
  2. Step 2: Convert to fraction form
    13,382.10/20,063.19 = 8,118.27/x
  3. Step 3: Cross multiply
    13,382.10x = 20,063.19 × 8,118.27
  4. Step 4: Simplify right side
    13,382.10x = 162,878,393.48
  5. Step 5: Solve for x
    x = 162,878,393.48/13,382.10
  6. Step 6: Final answer
    x = 12,171.36

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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.