Home / 15,844.74-21,865.62-8,771.58

Finding the Fourth Proportional to 15,844.74, 21,865.62 and 8,771.58

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Solution

The fourth proportional to 15,844.74, 21,865.62 and 8,771.58 is: 12,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,844.74 : 21,865.62 = 8,771.58 : x
  2. Step 2: Convert to fraction form
    15,844.74/21,865.62 = 8,771.58/x
  3. Step 3: Cross multiply
    15,844.74x = 21,865.62 × 8,771.58
  4. Step 4: Simplify right side
    15,844.74x = 191,796,035.08
  5. Step 5: Solve for x
    x = 191,796,035.08/15,844.74
  6. Step 6: Final answer
    x = 12,104.71

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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.