Home / 7,719.18-11,576.47-3,276.78

Finding the Fourth Proportional to 7,719.18, 11,576.47 and 3,276.78

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Solution

The fourth proportional to 7,719.18, 11,576.47 and 3,276.78 is: 4,914.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.18 : 11,576.47 = 3,276.78 : x
  2. Step 2: Convert to fraction form
    7,719.18/11,576.47 = 3,276.78/x
  3. Step 3: Cross multiply
    7,719.18x = 11,576.47 × 3,276.78
  4. Step 4: Simplify right side
    7,719.18x = 37,933,537.17
  5. Step 5: Solve for x
    x = 37,933,537.17/7,719.18
  6. Step 6: Final answer
    x = 4,914.19

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1.5x scale

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.