Home / 6,909.06-10,367.25-3,209.40

Finding the Fourth Proportional to 6,909.06, 10,367.25 and 3,209.40

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Solution

The fourth proportional to 6,909.06, 10,367.25 and 3,209.40 is: 4,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.06 : 10,367.25 = 3,209.40 : x
  2. Step 2: Convert to fraction form
    6,909.06/10,367.25 = 3,209.40/x
  3. Step 3: Cross multiply
    6,909.06x = 10,367.25 × 3,209.40
  4. Step 4: Simplify right side
    6,909.06x = 33,272,652.15
  5. Step 5: Solve for x
    x = 33,272,652.15/6,909.06
  6. Step 6: Final answer
    x = 4,815.80

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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.