Home / 19,787.94-29,685.15-9,396.18

Finding the Fourth Proportional to 19,787.94, 29,685.15 and 9,396.18

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Solution

The fourth proportional to 19,787.94, 29,685.15 and 9,396.18 is: 14,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.94 : 29,685.15 = 9,396.18 : x
  2. Step 2: Convert to fraction form
    19,787.94/29,685.15 = 9,396.18/x
  3. Step 3: Cross multiply
    19,787.94x = 29,685.15 × 9,396.18
  4. Step 4: Simplify right side
    19,787.94x = 278,927,012.73
  5. Step 5: Solve for x
    x = 278,927,012.73/19,787.94
  6. Step 6: Final answer
    x = 14,095.81

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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.