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Finding the Fourth Proportional to 6,398.56, 9,606.68 and 4,419.55

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Solution

The fourth proportional to 6,398.56, 9,606.68 and 4,419.55 is: 6,635.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.56 : 9,606.68 = 4,419.55 : x
  2. Step 2: Convert to fraction form
    6,398.56/9,606.68 = 4,419.55/x
  3. Step 3: Cross multiply
    6,398.56x = 9,606.68 × 4,419.55
  4. Step 4: Simplify right side
    6,398.56x = 42,457,202.59
  5. Step 5: Solve for x
    x = 42,457,202.59/6,398.56
  6. Step 6: Final answer
    x = 6,635.43

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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.