Home / 12,104.40-18,155.82-4,205.04

Finding the Fourth Proportional to 12,104.40, 18,155.82 and 4,205.04

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Solution

The fourth proportional to 12,104.40, 18,155.82 and 4,205.04 is: 6,307.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104.40 : 18,155.82 = 4,205.04 : x
  2. Step 2: Convert to fraction form
    12,104.40/18,155.82 = 4,205.04/x
  3. Step 3: Cross multiply
    12,104.40x = 18,155.82 × 4,205.04
  4. Step 4: Simplify right side
    12,104.40x = 76,345,949.33
  5. Step 5: Solve for x
    x = 76,345,949.33/12,104.40
  6. Step 6: Final answer
    x = 6,307.29

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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.