Home / 15,830.82-21,846.44-8,757.09

Finding the Fourth Proportional to 15,830.82, 21,846.44 and 8,757.09

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Solution

The fourth proportional to 15,830.82, 21,846.44 and 8,757.09 is: 12,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,830.82 : 21,846.44 = 8,757.09 : x
  2. Step 2: Convert to fraction form
    15,830.82/21,846.44 = 8,757.09/x
  3. Step 3: Cross multiply
    15,830.82x = 21,846.44 × 8,757.09
  4. Step 4: Simplify right side
    15,830.82x = 191,311,263.15
  5. Step 5: Solve for x
    x = 191,311,263.15/15,830.82
  6. Step 6: Final answer
    x = 12,084.73

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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.