Home / 11,491.20-17,237.28-6,864

Finding the Fourth Proportional to 11,491.20, 17,237.28 and 6,864

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Solution

The fourth proportional to 11,491.20, 17,237.28 and 6,864 is: 10,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.20 : 17,237.28 = 6,864 : x
  2. Step 2: Convert to fraction form
    11,491.20/17,237.28 = 6,864/x
  3. Step 3: Cross multiply
    11,491.20x = 17,237.28 × 6,864
  4. Step 4: Simplify right side
    11,491.20x = 118,316,689.92
  5. Step 5: Solve for x
    x = 118,316,689.92/11,491.20
  6. Step 6: Final answer
    x = 10,296.29

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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.