Home / 12,048.78-18,073.62-3,728.04

Finding the Fourth Proportional to 12,048.78, 18,073.62 and 3,728.04

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Solution

The fourth proportional to 12,048.78, 18,073.62 and 3,728.04 is: 5,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048.78 : 18,073.62 = 3,728.04 : x
  2. Step 2: Convert to fraction form
    12,048.78/18,073.62 = 3,728.04/x
  3. Step 3: Cross multiply
    12,048.78x = 18,073.62 × 3,728.04
  4. Step 4: Simplify right side
    12,048.78x = 67,379,178.30
  5. Step 5: Solve for x
    x = 67,379,178.30/12,048.78
  6. Step 6: Final answer
    x = 5,592.20

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1.5x scale

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.