Home / 6,909.27-10,338.39-4,137.86

Finding the Fourth Proportional to 6,909.27, 10,338.39 and 4,137.86

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Solution

The fourth proportional to 6,909.27, 10,338.39 and 4,137.86 is: 6,191.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.27 : 10,338.39 = 4,137.86 : x
  2. Step 2: Convert to fraction form
    6,909.27/10,338.39 = 4,137.86/x
  3. Step 3: Cross multiply
    6,909.27x = 10,338.39 × 4,137.86
  4. Step 4: Simplify right side
    6,909.27x = 42,778,758.75
  5. Step 5: Solve for x
    x = 42,778,758.75/6,909.27
  6. Step 6: Final answer
    x = 6,191.50

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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.