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Finding the Fourth Proportional to 6,643.56, 9,951.36 and 6,260.64

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Solution

The fourth proportional to 6,643.56, 9,951.36 and 6,260.64 is: 9,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.56 : 9,951.36 = 6,260.64 : x
  2. Step 2: Convert to fraction form
    6,643.56/9,951.36 = 6,260.64/x
  3. Step 3: Cross multiply
    6,643.56x = 9,951.36 × 6,260.64
  4. Step 4: Simplify right side
    6,643.56x = 62,301,882.47
  5. Step 5: Solve for x
    x = 62,301,882.47/6,643.56
  6. Step 6: Final answer
    x = 9,377.79

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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.