Home / 11,318.02-16,972.83-3,920.50

Finding the Fourth Proportional to 11,318.02, 16,972.83 and 3,920.50

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Solution

The fourth proportional to 11,318.02, 16,972.83 and 3,920.50 is: 5,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.02 : 16,972.83 = 3,920.50 : x
  2. Step 2: Convert to fraction form
    11,318.02/16,972.83 = 3,920.50/x
  3. Step 3: Cross multiply
    11,318.02x = 16,972.83 × 3,920.50
  4. Step 4: Simplify right side
    11,318.02x = 66,541,980.02
  5. Step 5: Solve for x
    x = 66,541,980.02/11,318.02
  6. Step 6: Final answer
    x = 5,879.30

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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.