Home / 18,549.10-27,823.70-5,401.78

Finding the Fourth Proportional to 18,549.10, 27,823.70 and 5,401.78

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Solution

The fourth proportional to 18,549.10, 27,823.70 and 5,401.78 is: 8,102.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,549.10 : 27,823.70 = 5,401.78 : x
  2. Step 2: Convert to fraction form
    18,549.10/27,823.70 = 5,401.78/x
  3. Step 3: Cross multiply
    18,549.10x = 27,823.70 × 5,401.78
  4. Step 4: Simplify right side
    18,549.10x = 150,297,506.19
  5. Step 5: Solve for x
    x = 150,297,506.19/18,549.10
  6. Step 6: Final answer
    x = 8,102.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.