Home / 19,789.68-29,684.52-8,838

Finding the Fourth Proportional to 19,789.68, 29,684.52 and 8,838

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Solution

The fourth proportional to 19,789.68, 29,684.52 and 8,838 is: 13,257

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.68 : 29,684.52 = 8,838 : x
  2. Step 2: Convert to fraction form
    19,789.68/29,684.52 = 8,838/x
  3. Step 3: Cross multiply
    19,789.68x = 29,684.52 × 8,838
  4. Step 4: Simplify right side
    19,789.68x = 262,351,787.76
  5. Step 5: Solve for x
    x = 262,351,787.76/19,789.68
  6. Step 6: Final answer
    x = 13,257

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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.