Home / 15,912.33-21,961.40-11,450.85

Finding the Fourth Proportional to 15,912.33, 21,961.40 and 11,450.85

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Solution

The fourth proportional to 15,912.33, 21,961.40 and 11,450.85 is: 15,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.33 : 21,961.40 = 11,450.85 : x
  2. Step 2: Convert to fraction form
    15,912.33/21,961.40 = 11,450.85/x
  3. Step 3: Cross multiply
    15,912.33x = 21,961.40 × 11,450.85
  4. Step 4: Simplify right side
    15,912.33x = 251,476,697.19
  5. Step 5: Solve for x
    x = 251,476,697.19/15,912.33
  6. Step 6: Final answer
    x = 15,803.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.