Home / 15,926.48-21,976.63-8,755.21

Finding the Fourth Proportional to 15,926.48, 21,976.63 and 8,755.21

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Solution

The fourth proportional to 15,926.48, 21,976.63 and 8,755.21 is: 12,081.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,926.48 : 21,976.63 = 8,755.21 : x
  2. Step 2: Convert to fraction form
    15,926.48/21,976.63 = 8,755.21/x
  3. Step 3: Cross multiply
    15,926.48x = 21,976.63 × 8,755.21
  4. Step 4: Simplify right side
    15,926.48x = 192,409,917.50
  5. Step 5: Solve for x
    x = 192,409,917.50/15,926.48
  6. Step 6: Final answer
    x = 12,081.14

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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.