Home / 15,737.44-21,717.75-8,663.86

Finding the Fourth Proportional to 15,737.44, 21,717.75 and 8,663.86

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Solution

The fourth proportional to 15,737.44, 21,717.75 and 8,663.86 is: 11,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,737.44 : 21,717.75 = 8,663.86 : x
  2. Step 2: Convert to fraction form
    15,737.44/21,717.75 = 8,663.86/x
  3. Step 3: Cross multiply
    15,737.44x = 21,717.75 × 8,663.86
  4. Step 4: Simplify right side
    15,737.44x = 188,159,629.63
  5. Step 5: Solve for x
    x = 188,159,629.63/15,737.44
  6. Step 6: Final answer
    x = 11,956.18

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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.