Home / 12,622.64-18,934.56-3,738.04

Finding the Fourth Proportional to 12,622.64, 18,934.56 and 3,738.04

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Solution

The fourth proportional to 12,622.64, 18,934.56 and 3,738.04 is: 5,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.64 : 18,934.56 = 3,738.04 : x
  2. Step 2: Convert to fraction form
    12,622.64/18,934.56 = 3,738.04/x
  3. Step 3: Cross multiply
    12,622.64x = 18,934.56 × 3,738.04
  4. Step 4: Simplify right side
    12,622.64x = 70,778,142.66
  5. Step 5: Solve for x
    x = 70,778,142.66/12,622.64
  6. Step 6: Final answer
    x = 5,607.24

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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.