Home / 12,235.33-18,355.73-3,915.85

Finding the Fourth Proportional to 12,235.33, 18,355.73 and 3,915.85

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Solution

The fourth proportional to 12,235.33, 18,355.73 and 3,915.85 is: 5,874.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.33 : 18,355.73 = 3,915.85 : x
  2. Step 2: Convert to fraction form
    12,235.33/18,355.73 = 3,915.85/x
  3. Step 3: Cross multiply
    12,235.33x = 18,355.73 × 3,915.85
  4. Step 4: Simplify right side
    12,235.33x = 71,878,285.32
  5. Step 5: Solve for x
    x = 71,878,285.32/12,235.33
  6. Step 6: Final answer
    x = 5,874.65

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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.