Home / 7,515.56-11,276.87-3,355.19

Finding the Fourth Proportional to 7,515.56, 11,276.87 and 3,355.19

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Solution

The fourth proportional to 7,515.56, 11,276.87 and 3,355.19 is: 5,034.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.56 : 11,276.87 = 3,355.19 : x
  2. Step 2: Convert to fraction form
    7,515.56/11,276.87 = 3,355.19/x
  3. Step 3: Cross multiply
    7,515.56x = 11,276.87 × 3,355.19
  4. Step 4: Simplify right side
    7,515.56x = 37,835,968.30
  5. Step 5: Solve for x
    x = 37,835,968.30/7,515.56
  6. Step 6: Final answer
    x = 5,034.35

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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.