Home / 9,438.62-13,025.30-5,189.75

Finding the Fourth Proportional to 9,438.62, 13,025.30 and 5,189.75

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Solution

The fourth proportional to 9,438.62, 13,025.30 and 5,189.75 is: 7,161.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.62 : 13,025.30 = 5,189.75 : x
  2. Step 2: Convert to fraction form
    9,438.62/13,025.30 = 5,189.75/x
  3. Step 3: Cross multiply
    9,438.62x = 13,025.30 × 5,189.75
  4. Step 4: Simplify right side
    9,438.62x = 67,598,063.25
  5. Step 5: Solve for x
    x = 67,598,063.25/9,438.62
  6. Step 6: Final answer
    x = 7,161.86

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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.