Home / 19,766.05-29,660.02-8,087.47

Finding the Fourth Proportional to 19,766.05, 29,660.02 and 8,087.47

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Solution

The fourth proportional to 19,766.05, 29,660.02 and 8,087.47 is: 12,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,766.05 : 29,660.02 = 8,087.47 : x
  2. Step 2: Convert to fraction form
    19,766.05/29,660.02 = 8,087.47/x
  3. Step 3: Cross multiply
    19,766.05x = 29,660.02 × 8,087.47
  4. Step 4: Simplify right side
    19,766.05x = 239,874,427.58
  5. Step 5: Solve for x
    x = 239,874,427.58/19,766.05
  6. Step 6: Final answer
    x = 12,135.68

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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.