Home / 10,821.17-16,239.45-4,247.36

Finding the Fourth Proportional to 10,821.17, 16,239.45 and 4,247.36

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Solution

The fourth proportional to 10,821.17, 16,239.45 and 4,247.36 is: 6,374.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.17 : 16,239.45 = 4,247.36 : x
  2. Step 2: Convert to fraction form
    10,821.17/16,239.45 = 4,247.36/x
  3. Step 3: Cross multiply
    10,821.17x = 16,239.45 × 4,247.36
  4. Step 4: Simplify right side
    10,821.17x = 68,974,709.15
  5. Step 5: Solve for x
    x = 68,974,709.15/10,821.17
  6. Step 6: Final answer
    x = 6,374.06

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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.