Home / 11,856.49-17,787.23-4,065.91

Finding the Fourth Proportional to 11,856.49, 17,787.23 and 4,065.91

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Solution

The fourth proportional to 11,856.49, 17,787.23 and 4,065.91 is: 6,099.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,856.49 : 17,787.23 = 4,065.91 : x
  2. Step 2: Convert to fraction form
    11,856.49/17,787.23 = 4,065.91/x
  3. Step 3: Cross multiply
    11,856.49x = 17,787.23 × 4,065.91
  4. Step 4: Simplify right side
    11,856.49x = 72,321,276.33
  5. Step 5: Solve for x
    x = 72,321,276.33/11,856.49
  6. Step 6: Final answer
    x = 6,099.72

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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.