Home / 9,078.71-13,619.96-2,838.47

Finding the Fourth Proportional to 9,078.71, 13,619.96 and 2,838.47

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Solution

The fourth proportional to 9,078.71, 13,619.96 and 2,838.47 is: 4,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.71 : 13,619.96 = 2,838.47 : x
  2. Step 2: Convert to fraction form
    9,078.71/13,619.96 = 2,838.47/x
  3. Step 3: Cross multiply
    9,078.71x = 13,619.96 × 2,838.47
  4. Step 4: Simplify right side
    9,078.71x = 38,659,765.57
  5. Step 5: Solve for x
    x = 38,659,765.57/9,078.71
  6. Step 6: Final answer
    x = 4,258.29

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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.