Home / 15,961.80-23,986.62-8,571.72

Finding the Fourth Proportional to 15,961.80, 23,986.62 and 8,571.72

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Solution

The fourth proportional to 15,961.80, 23,986.62 and 8,571.72 is: 12,881.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.80 : 23,986.62 = 8,571.72 : x
  2. Step 2: Convert to fraction form
    15,961.80/23,986.62 = 8,571.72/x
  3. Step 3: Cross multiply
    15,961.80x = 23,986.62 × 8,571.72
  4. Step 4: Simplify right side
    15,961.80x = 205,606,590.39
  5. Step 5: Solve for x
    x = 205,606,590.39/15,961.80
  6. Step 6: Final answer
    x = 12,881.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.