Home / 13,558.19-20,351.66-12,008.25

Finding the Fourth Proportional to 13,558.19, 20,351.66 and 12,008.25

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Solution

The fourth proportional to 13,558.19, 20,351.66 and 12,008.25 is: 18,025.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.19 : 20,351.66 = 12,008.25 : x
  2. Step 2: Convert to fraction form
    13,558.19/20,351.66 = 12,008.25/x
  3. Step 3: Cross multiply
    13,558.19x = 20,351.66 × 12,008.25
  4. Step 4: Simplify right side
    13,558.19x = 244,387,761.15
  5. Step 5: Solve for x
    x = 244,387,761.15/13,558.19
  6. Step 6: Final answer
    x = 18,025.11

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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.