Home / 11,639.19-17,458.87-3,319.19

Finding the Fourth Proportional to 11,639.19, 17,458.87 and 3,319.19

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Solution

The fourth proportional to 11,639.19, 17,458.87 and 3,319.19 is: 4,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.19 : 17,458.87 = 3,319.19 : x
  2. Step 2: Convert to fraction form
    11,639.19/17,458.87 = 3,319.19/x
  3. Step 3: Cross multiply
    11,639.19x = 17,458.87 × 3,319.19
  4. Step 4: Simplify right side
    11,639.19x = 57,949,306.72
  5. Step 5: Solve for x
    x = 57,949,306.72/11,639.19
  6. Step 6: Final answer
    x = 4,978.81

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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.