Home / 12,069.84-18,105.30-3,305.64

Finding the Fourth Proportional to 12,069.84, 18,105.30 and 3,305.64

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Solution

The fourth proportional to 12,069.84, 18,105.30 and 3,305.64 is: 4,958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.84 : 18,105.30 = 3,305.64 : x
  2. Step 2: Convert to fraction form
    12,069.84/18,105.30 = 3,305.64/x
  3. Step 3: Cross multiply
    12,069.84x = 18,105.30 × 3,305.64
  4. Step 4: Simplify right side
    12,069.84x = 59,849,603.89
  5. Step 5: Solve for x
    x = 59,849,603.89/12,069.84
  6. Step 6: Final answer
    x = 4,958.61

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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.