Home / 13,388.12-20,060.27-8,107.13

Finding the Fourth Proportional to 13,388.12, 20,060.27 and 8,107.13

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Solution

The fourth proportional to 13,388.12, 20,060.27 and 8,107.13 is: 12,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.12 : 20,060.27 = 8,107.13 : x
  2. Step 2: Convert to fraction form
    13,388.12/20,060.27 = 8,107.13/x
  3. Step 3: Cross multiply
    13,388.12x = 20,060.27 × 8,107.13
  4. Step 4: Simplify right side
    13,388.12x = 162,631,287.14
  5. Step 5: Solve for x
    x = 162,631,287.14/13,388.12
  6. Step 6: Final answer
    x = 12,147.43

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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.