Home / 12,209.29-18,313.94-4,416.28

Finding the Fourth Proportional to 12,209.29, 18,313.94 and 4,416.28

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Solution

The fourth proportional to 12,209.29, 18,313.94 and 4,416.28 is: 6,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.29 : 18,313.94 = 4,416.28 : x
  2. Step 2: Convert to fraction form
    12,209.29/18,313.94 = 4,416.28/x
  3. Step 3: Cross multiply
    12,209.29x = 18,313.94 × 4,416.28
  4. Step 4: Simplify right side
    12,209.29x = 80,879,452.20
  5. Step 5: Solve for x
    x = 80,879,452.20/12,209.29
  6. Step 6: Final answer
    x = 6,624.42

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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.