Home / 13,444.50-18,550.38-8,138.19

Finding the Fourth Proportional to 13,444.50, 18,550.38 and 8,138.19

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Solution

The fourth proportional to 13,444.50, 18,550.38 and 8,138.19 is: 11,228.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.50 : 18,550.38 = 8,138.19 : x
  2. Step 2: Convert to fraction form
    13,444.50/18,550.38 = 8,138.19/x
  3. Step 3: Cross multiply
    13,444.50x = 18,550.38 × 8,138.19
  4. Step 4: Simplify right side
    13,444.50x = 150,966,517.01
  5. Step 5: Solve for x
    x = 150,966,517.01/13,444.50
  6. Step 6: Final answer
    x = 11,228.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.