Home / 9,578.28-13,217.94-5,386.44

Finding the Fourth Proportional to 9,578.28, 13,217.94 and 5,386.44

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Solution

The fourth proportional to 9,578.28, 13,217.94 and 5,386.44 is: 7,433.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578.28 : 13,217.94 = 5,386.44 : x
  2. Step 2: Convert to fraction form
    9,578.28/13,217.94 = 5,386.44/x
  3. Step 3: Cross multiply
    9,578.28x = 13,217.94 × 5,386.44
  4. Step 4: Simplify right side
    9,578.28x = 71,197,640.73
  5. Step 5: Solve for x
    x = 71,197,640.73/9,578.28
  6. Step 6: Final answer
    x = 7,433.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.