Home / 10,787.04-16,171.92-4,212

Finding the Fourth Proportional to 10,787.04, 16,171.92 and 4,212

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Solution

The fourth proportional to 10,787.04, 16,171.92 and 4,212 is: 6,314.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.04 : 16,171.92 = 4,212 : x
  2. Step 2: Convert to fraction form
    10,787.04/16,171.92 = 4,212/x
  3. Step 3: Cross multiply
    10,787.04x = 16,171.92 × 4,212
  4. Step 4: Simplify right side
    10,787.04x = 68,116,127.04
  5. Step 5: Solve for x
    x = 68,116,127.04/10,787.04
  6. Step 6: Final answer
    x = 6,314.63

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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.