Home / 15,836.26-21,872.01-10,791.85

Finding the Fourth Proportional to 15,836.26, 21,872.01 and 10,791.85

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Solution

The fourth proportional to 15,836.26, 21,872.01 and 10,791.85 is: 14,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,836.26 : 21,872.01 = 10,791.85 : x
  2. Step 2: Convert to fraction form
    15,836.26/21,872.01 = 10,791.85/x
  3. Step 3: Cross multiply
    15,836.26x = 21,872.01 × 10,791.85
  4. Step 4: Simplify right side
    15,836.26x = 236,039,451.12
  5. Step 5: Solve for x
    x = 236,039,451.12/15,836.26
  6. Step 6: Final answer
    x = 14,905.00

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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.