Home / 12,226.91-18,329.36-4,430.25

Finding the Fourth Proportional to 12,226.91, 18,329.36 and 4,430.25

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Solution

The fourth proportional to 12,226.91, 18,329.36 and 4,430.25 is: 6,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.91 : 18,329.36 = 4,430.25 : x
  2. Step 2: Convert to fraction form
    12,226.91/18,329.36 = 4,430.25/x
  3. Step 3: Cross multiply
    12,226.91x = 18,329.36 × 4,430.25
  4. Step 4: Simplify right side
    12,226.91x = 81,203,624.99
  5. Step 5: Solve for x
    x = 81,203,624.99/12,226.91
  6. Step 6: Final answer
    x = 6,641.39

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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.