Home / 9,578.31-13,217.22-5,385.75

Finding the Fourth Proportional to 9,578.31, 13,217.22 and 5,385.75

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Solution

The fourth proportional to 9,578.31, 13,217.22 and 5,385.75 is: 7,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,578.31 : 13,217.22 = 5,385.75 : x
  2. Step 2: Convert to fraction form
    9,578.31/13,217.22 = 5,385.75/x
  3. Step 3: Cross multiply
    9,578.31x = 13,217.22 × 5,385.75
  4. Step 4: Simplify right side
    9,578.31x = 71,184,642.62
  5. Step 5: Solve for x
    x = 71,184,642.62/9,578.31
  6. Step 6: Final answer
    x = 7,431.86

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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.