Home / 11,517.60-17,276.40-5,277.60

Finding the Fourth Proportional to 11,517.60, 17,276.40 and 5,277.60

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Solution

The fourth proportional to 11,517.60, 17,276.40 and 5,277.60 is: 7,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.60 : 17,276.40 = 5,277.60 : x
  2. Step 2: Convert to fraction form
    11,517.60/17,276.40 = 5,277.60/x
  3. Step 3: Cross multiply
    11,517.60x = 17,276.40 × 5,277.60
  4. Step 4: Simplify right side
    11,517.60x = 91,177,928.64
  5. Step 5: Solve for x
    x = 91,177,928.64/11,517.60
  6. Step 6: Final answer
    x = 7,916.40

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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.