Home / 13,369.59-18,450.18-7,401.36

Finding the Fourth Proportional to 13,369.59, 18,450.18 and 7,401.36

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Solution

The fourth proportional to 13,369.59, 18,450.18 and 7,401.36 is: 10,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.59 : 18,450.18 = 7,401.36 : x
  2. Step 2: Convert to fraction form
    13,369.59/18,450.18 = 7,401.36/x
  3. Step 3: Cross multiply
    13,369.59x = 18,450.18 × 7,401.36
  4. Step 4: Simplify right side
    13,369.59x = 136,556,389.65
  5. Step 5: Solve for x
    x = 136,556,389.65/13,369.59
  6. Step 6: Final answer
    x = 10,213.95

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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.