Home / 10,787.78-16,179.23-2,997.20

Finding the Fourth Proportional to 10,787.78, 16,179.23 and 2,997.20

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Solution

The fourth proportional to 10,787.78, 16,179.23 and 2,997.20 is: 4,495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.78 : 16,179.23 = 2,997.20 : x
  2. Step 2: Convert to fraction form
    10,787.78/16,179.23 = 2,997.20/x
  3. Step 3: Cross multiply
    10,787.78x = 16,179.23 × 2,997.20
  4. Step 4: Simplify right side
    10,787.78x = 48,492,436.10
  5. Step 5: Solve for x
    x = 48,492,436.10/10,787.78
  6. Step 6: Final answer
    x = 4,495.13

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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.