Home / 8,811.90-13,216.95-2,968.56

Finding the Fourth Proportional to 8,811.90, 13,216.95 and 2,968.56

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Solution

The fourth proportional to 8,811.90, 13,216.95 and 2,968.56 is: 4,452.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.90 : 13,216.95 = 2,968.56 : x
  2. Step 2: Convert to fraction form
    8,811.90/13,216.95 = 2,968.56/x
  3. Step 3: Cross multiply
    8,811.90x = 13,216.95 × 2,968.56
  4. Step 4: Simplify right side
    8,811.90x = 39,235,309.09
  5. Step 5: Solve for x
    x = 39,235,309.09/8,811.90
  6. Step 6: Final answer
    x = 4,452.54

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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.