Home / 19,111.46-28,660.37-7,863.52

Finding the Fourth Proportional to 19,111.46, 28,660.37 and 7,863.52

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Solution

The fourth proportional to 19,111.46, 28,660.37 and 7,863.52 is: 11,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.46 : 28,660.37 = 7,863.52 : x
  2. Step 2: Convert to fraction form
    19,111.46/28,660.37 = 7,863.52/x
  3. Step 3: Cross multiply
    19,111.46x = 28,660.37 × 7,863.52
  4. Step 4: Simplify right side
    19,111.46x = 225,371,392.70
  5. Step 5: Solve for x
    x = 225,371,392.70/19,111.46
  6. Step 6: Final answer
    x = 11,792.47

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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.