Home / 13,884.21-20,834.42-5,562.81

Finding the Fourth Proportional to 13,884.21, 20,834.42 and 5,562.81

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Solution

The fourth proportional to 13,884.21, 20,834.42 and 5,562.81 is: 8,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.21 : 20,834.42 = 5,562.81 : x
  2. Step 2: Convert to fraction form
    13,884.21/20,834.42 = 5,562.81/x
  3. Step 3: Cross multiply
    13,884.21x = 20,834.42 × 5,562.81
  4. Step 4: Simplify right side
    13,884.21x = 115,897,892.11
  5. Step 5: Solve for x
    x = 115,897,892.11/13,884.21
  6. Step 6: Final answer
    x = 8,347.46

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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.