Home / 13,867.61-20,788.65-5,542.43

Finding the Fourth Proportional to 13,867.61, 20,788.65 and 5,542.43

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Solution

The fourth proportional to 13,867.61, 20,788.65 and 5,542.43 is: 8,308.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.61 : 20,788.65 = 5,542.43 : x
  2. Step 2: Convert to fraction form
    13,867.61/20,788.65 = 5,542.43/x
  3. Step 3: Cross multiply
    13,867.61x = 20,788.65 × 5,542.43
  4. Step 4: Simplify right side
    13,867.61x = 115,219,533.48
  5. Step 5: Solve for x
    x = 115,219,533.48/13,867.61
  6. Step 6: Final answer
    x = 8,308.54

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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.