Home / 13,401.70-18,482.24-8,366.39

Finding the Fourth Proportional to 13,401.70, 18,482.24 and 8,366.39

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Solution

The fourth proportional to 13,401.70, 18,482.24 and 8,366.39 is: 11,538.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.70 : 18,482.24 = 8,366.39 : x
  2. Step 2: Convert to fraction form
    13,401.70/18,482.24 = 8,366.39/x
  3. Step 3: Cross multiply
    13,401.70x = 18,482.24 × 8,366.39
  4. Step 4: Simplify right side
    13,401.70x = 154,629,625.73
  5. Step 5: Solve for x
    x = 154,629,625.73/13,401.70
  6. Step 6: Final answer
    x = 11,538.06

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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.