Home / 11,273.87-15,539.96-8,880.05

Finding the Fourth Proportional to 11,273.87, 15,539.96 and 8,880.05

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Solution

The fourth proportional to 11,273.87, 15,539.96 and 8,880.05 is: 12,240.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,273.87 : 15,539.96 = 8,880.05 : x
  2. Step 2: Convert to fraction form
    11,273.87/15,539.96 = 8,880.05/x
  3. Step 3: Cross multiply
    11,273.87x = 15,539.96 × 8,880.05
  4. Step 4: Simplify right side
    11,273.87x = 137,995,499.70
  5. Step 5: Solve for x
    x = 137,995,499.70/11,273.87
  6. Step 6: Final answer
    x = 12,240.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.