Home / 6,909.21-10,366.38-4,137.83

Finding the Fourth Proportional to 6,909.21, 10,366.38 and 4,137.83

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Solution

The fourth proportional to 6,909.21, 10,366.38 and 4,137.83 is: 6,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.21 : 10,366.38 = 4,137.83 : x
  2. Step 2: Convert to fraction form
    6,909.21/10,366.38 = 4,137.83/x
  3. Step 3: Cross multiply
    6,909.21x = 10,366.38 × 4,137.83
  4. Step 4: Simplify right side
    6,909.21x = 42,894,318.16
  5. Step 5: Solve for x
    x = 42,894,318.16/6,909.21
  6. Step 6: Final answer
    x = 6,208.28

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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.