Home / 15,747.58-21,732.96-8,675.32

Finding the Fourth Proportional to 15,747.58, 21,732.96 and 8,675.32

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Solution

The fourth proportional to 15,747.58, 21,732.96 and 8,675.32 is: 11,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.58 : 21,732.96 = 8,675.32 : x
  2. Step 2: Convert to fraction form
    15,747.58/21,732.96 = 8,675.32/x
  3. Step 3: Cross multiply
    15,747.58x = 21,732.96 × 8,675.32
  4. Step 4: Simplify right side
    15,747.58x = 188,540,382.55
  5. Step 5: Solve for x
    x = 188,540,382.55/15,747.58
  6. Step 6: Final answer
    x = 11,972.66

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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.