Home / 13,443.11-18,550.94-7,474.34

Finding the Fourth Proportional to 13,443.11, 18,550.94 and 7,474.34

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Solution

The fourth proportional to 13,443.11, 18,550.94 and 7,474.34 is: 10,314.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.11 : 18,550.94 = 7,474.34 : x
  2. Step 2: Convert to fraction form
    13,443.11/18,550.94 = 7,474.34/x
  3. Step 3: Cross multiply
    13,443.11x = 18,550.94 × 7,474.34
  4. Step 4: Simplify right side
    13,443.11x = 138,655,902.75
  5. Step 5: Solve for x
    x = 138,655,902.75/13,443.11
  6. Step 6: Final answer
    x = 10,314.28

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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.