Home / 12,736-19,105.28-4,531.20

Finding the Fourth Proportional to 12,736, 19,105.28 and 4,531.20

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Solution

The fourth proportional to 12,736, 19,105.28 and 4,531.20 is: 6,797.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,736 : 19,105.28 = 4,531.20 : x
  2. Step 2: Convert to fraction form
    12,736/19,105.28 = 4,531.20/x
  3. Step 3: Cross multiply
    12,736x = 19,105.28 × 4,531.20
  4. Step 4: Simplify right side
    12,736x = 86,569,844.74
  5. Step 5: Solve for x
    x = 86,569,844.74/12,736
  6. Step 6: Final answer
    x = 6,797.26

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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.