Home / 11,188.51-16,772.28-3,787.79

Finding the Fourth Proportional to 11,188.51, 16,772.28 and 3,787.79

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Solution

The fourth proportional to 11,188.51, 16,772.28 and 3,787.79 is: 5,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.51 : 16,772.28 = 3,787.79 : x
  2. Step 2: Convert to fraction form
    11,188.51/16,772.28 = 3,787.79/x
  3. Step 3: Cross multiply
    11,188.51x = 16,772.28 × 3,787.79
  4. Step 4: Simplify right side
    11,188.51x = 63,529,874.46
  5. Step 5: Solve for x
    x = 63,529,874.46/11,188.51
  6. Step 6: Final answer
    x = 5,678.14

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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.