Home / 9,578.21-13,217.60-5,270.90

Finding the Fourth Proportional to 9,578.21, 13,217.60 and 5,270.90

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Solution

The fourth proportional to 9,578.21, 13,217.60 and 5,270.90 is: 7,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578.21 : 13,217.60 = 5,270.90 : x
  2. Step 2: Convert to fraction form
    9,578.21/13,217.60 = 5,270.90/x
  3. Step 3: Cross multiply
    9,578.21x = 13,217.60 × 5,270.90
  4. Step 4: Simplify right side
    9,578.21x = 69,668,710.58
  5. Step 5: Solve for x
    x = 69,668,710.58/9,578.21
  6. Step 6: Final answer
    x = 7,273.66

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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.