Home / 13,789.36-20,688.36-5,022.64

Finding the Fourth Proportional to 13,789.36, 20,688.36 and 5,022.64

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Solution

The fourth proportional to 13,789.36, 20,688.36 and 5,022.64 is: 7,535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.36 : 20,688.36 = 5,022.64 : x
  2. Step 2: Convert to fraction form
    13,789.36/20,688.36 = 5,022.64/x
  3. Step 3: Cross multiply
    13,789.36x = 20,688.36 × 5,022.64
  4. Step 4: Simplify right side
    13,789.36x = 103,910,184.47
  5. Step 5: Solve for x
    x = 103,910,184.47/13,789.36
  6. Step 6: Final answer
    x = 7,535.53

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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.