Home / 10,909.08-16,351.07-4,665.20

Finding the Fourth Proportional to 10,909.08, 16,351.07 and 4,665.20

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Solution

The fourth proportional to 10,909.08, 16,351.07 and 4,665.20 is: 6,992.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.08 : 16,351.07 = 4,665.20 : x
  2. Step 2: Convert to fraction form
    10,909.08/16,351.07 = 4,665.20/x
  3. Step 3: Cross multiply
    10,909.08x = 16,351.07 × 4,665.20
  4. Step 4: Simplify right side
    10,909.08x = 76,280,906.68
  5. Step 5: Solve for x
    x = 76,280,906.68/10,909.08
  6. Step 6: Final answer
    x = 6,992.42

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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.