Home / 13,881.72-20,822.70-5,562.48

Finding the Fourth Proportional to 13,881.72, 20,822.70 and 5,562.48

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Solution

The fourth proportional to 13,881.72, 20,822.70 and 5,562.48 is: 8,343.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.72 : 20,822.70 = 5,562.48 : x
  2. Step 2: Convert to fraction form
    13,881.72/20,822.70 = 5,562.48/x
  3. Step 3: Cross multiply
    13,881.72x = 20,822.70 × 5,562.48
  4. Step 4: Simplify right side
    13,881.72x = 115,825,852.30
  5. Step 5: Solve for x
    x = 115,825,852.30/13,881.72
  6. Step 6: Final answer
    x = 8,343.77

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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.