Home / 10,787.32-16,181.72-3,668.66

Finding the Fourth Proportional to 10,787.32, 16,181.72 and 3,668.66

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Solution

The fourth proportional to 10,787.32, 16,181.72 and 3,668.66 is: 5,503.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.32 : 16,181.72 = 3,668.66 : x
  2. Step 2: Convert to fraction form
    10,787.32/16,181.72 = 3,668.66/x
  3. Step 3: Cross multiply
    10,787.32x = 16,181.72 × 3,668.66
  4. Step 4: Simplify right side
    10,787.32x = 59,365,228.90
  5. Step 5: Solve for x
    x = 59,365,228.90/10,787.32
  6. Step 6: Final answer
    x = 5,503.24

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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.