Home / 7,665.42-11,442.19-6,576.78

Finding the Fourth Proportional to 7,665.42, 11,442.19 and 6,576.78

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Solution

The fourth proportional to 7,665.42, 11,442.19 and 6,576.78 is: 9,817.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.42 : 11,442.19 = 6,576.78 : x
  2. Step 2: Convert to fraction form
    7,665.42/11,442.19 = 6,576.78/x
  3. Step 3: Cross multiply
    7,665.42x = 11,442.19 × 6,576.78
  4. Step 4: Simplify right side
    7,665.42x = 75,252,766.35
  5. Step 5: Solve for x
    x = 75,252,766.35/7,665.42
  6. Step 6: Final answer
    x = 9,817.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.