Home / 11,277.20-16,867.80-10,115.60

Finding the Fourth Proportional to 11,277.20, 16,867.80 and 10,115.60

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Solution

The fourth proportional to 11,277.20, 16,867.80 and 10,115.60 is: 15,130.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.20 : 16,867.80 = 10,115.60 : x
  2. Step 2: Convert to fraction form
    11,277.20/16,867.80 = 10,115.60/x
  3. Step 3: Cross multiply
    11,277.20x = 16,867.80 × 10,115.60
  4. Step 4: Simplify right side
    11,277.20x = 170,627,917.68
  5. Step 5: Solve for x
    x = 170,627,917.68/11,277.20
  6. Step 6: Final answer
    x = 15,130.34

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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.