Home / 11,107.92-16,660.20-3,317.40

Finding the Fourth Proportional to 11,107.92, 16,660.20 and 3,317.40

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Solution

The fourth proportional to 11,107.92, 16,660.20 and 3,317.40 is: 4,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.92 : 16,660.20 = 3,317.40 : x
  2. Step 2: Convert to fraction form
    11,107.92/16,660.20 = 3,317.40/x
  3. Step 3: Cross multiply
    11,107.92x = 16,660.20 × 3,317.40
  4. Step 4: Simplify right side
    11,107.92x = 55,268,547.48
  5. Step 5: Solve for x
    x = 55,268,547.48/11,107.92
  6. Step 6: Final answer
    x = 4,975.60

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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.