Home / 7,442.38-11,141.62-6,519.72

Finding the Fourth Proportional to 7,442.38, 11,141.62 and 6,519.72

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Solution

The fourth proportional to 7,442.38, 11,141.62 and 6,519.72 is: 9,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.38 : 11,141.62 = 6,519.72 : x
  2. Step 2: Convert to fraction form
    7,442.38/11,141.62 = 6,519.72/x
  3. Step 3: Cross multiply
    7,442.38x = 11,141.62 × 6,519.72
  4. Step 4: Simplify right side
    7,442.38x = 72,640,268.23
  5. Step 5: Solve for x
    x = 72,640,268.23/7,442.38
  6. Step 6: Final answer
    x = 9,760.35

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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.