Home / 12,787.76-19,172.97-4,463.23

Finding the Fourth Proportional to 12,787.76, 19,172.97 and 4,463.23

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Solution

The fourth proportional to 12,787.76, 19,172.97 and 4,463.23 is: 6,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.76 : 19,172.97 = 4,463.23 : x
  2. Step 2: Convert to fraction form
    12,787.76/19,172.97 = 4,463.23/x
  3. Step 3: Cross multiply
    12,787.76x = 19,172.97 × 4,463.23
  4. Step 4: Simplify right side
    12,787.76x = 85,573,290.16
  5. Step 5: Solve for x
    x = 85,573,290.16/12,787.76
  6. Step 6: Final answer
    x = 6,691.81

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1.5x scale

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.