Home / 11,891.32-17,838.78-4,098.28

Finding the Fourth Proportional to 11,891.32, 17,838.78 and 4,098.28

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Solution

The fourth proportional to 11,891.32, 17,838.78 and 4,098.28 is: 6,148.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.32 : 17,838.78 = 4,098.28 : x
  2. Step 2: Convert to fraction form
    11,891.32/17,838.78 = 4,098.28/x
  3. Step 3: Cross multiply
    11,891.32x = 17,838.78 × 4,098.28
  4. Step 4: Simplify right side
    11,891.32x = 73,108,315.30
  5. Step 5: Solve for x
    x = 73,108,315.30/11,891.32
  6. Step 6: Final answer
    x = 6,148.04

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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.