Home / 13,881.38-20,819.94-5,559.23

Finding the Fourth Proportional to 13,881.38, 20,819.94 and 5,559.23

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Solution

The fourth proportional to 13,881.38, 20,819.94 and 5,559.23 is: 8,338.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881.38 : 20,819.94 = 5,559.23 : x
  2. Step 2: Convert to fraction form
    13,881.38/20,819.94 = 5,559.23/x
  3. Step 3: Cross multiply
    13,881.38x = 20,819.94 × 5,559.23
  4. Step 4: Simplify right side
    13,881.38x = 115,742,866.25
  5. Step 5: Solve for x
    x = 115,742,866.25/13,881.38
  6. Step 6: Final answer
    x = 8,338.00

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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.