Home / 7,438.26-11,147.84-3,275.58

Finding the Fourth Proportional to 7,438.26, 11,147.84 and 3,275.58

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Solution

The fourth proportional to 7,438.26, 11,147.84 and 3,275.58 is: 4,909.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438.26 : 11,147.84 = 3,275.58 : x
  2. Step 2: Convert to fraction form
    7,438.26/11,147.84 = 3,275.58/x
  3. Step 3: Cross multiply
    7,438.26x = 11,147.84 × 3,275.58
  4. Step 4: Simplify right side
    7,438.26x = 36,515,641.75
  5. Step 5: Solve for x
    x = 36,515,641.75/7,438.26
  6. Step 6: Final answer
    x = 4,909.16

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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.