Home / 13,369.68-18,450.42-7,401.18

Finding the Fourth Proportional to 13,369.68, 18,450.42 and 7,401.18

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Solution

The fourth proportional to 13,369.68, 18,450.42 and 7,401.18 is: 10,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.68 : 18,450.42 = 7,401.18 : x
  2. Step 2: Convert to fraction form
    13,369.68/18,450.42 = 7,401.18/x
  3. Step 3: Cross multiply
    13,369.68x = 18,450.42 × 7,401.18
  4. Step 4: Simplify right side
    13,369.68x = 136,554,879.50
  5. Step 5: Solve for x
    x = 136,554,879.50/13,369.68
  6. Step 6: Final answer
    x = 10,213.77

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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.