Home / 11,639.99-17,454.87-3,318.12

Finding the Fourth Proportional to 11,639.99, 17,454.87 and 3,318.12

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Solution

The fourth proportional to 11,639.99, 17,454.87 and 3,318.12 is: 4,975.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.99 : 17,454.87 = 3,318.12 : x
  2. Step 2: Convert to fraction form
    11,639.99/17,454.87 = 3,318.12/x
  3. Step 3: Cross multiply
    11,639.99x = 17,454.87 × 3,318.12
  4. Step 4: Simplify right side
    11,639.99x = 57,917,353.24
  5. Step 5: Solve for x
    x = 57,917,353.24/11,639.99
  6. Step 6: Final answer
    x = 4,975.72

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1.5x scale

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.