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Finding the Fourth Proportional to 6,617.43, 9,921.15 and 5,703.75

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Solution

The fourth proportional to 6,617.43, 9,921.15 and 5,703.75 is: 8,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.43 : 9,921.15 = 5,703.75 : x
  2. Step 2: Convert to fraction form
    6,617.43/9,921.15 = 5,703.75/x
  3. Step 3: Cross multiply
    6,617.43x = 9,921.15 × 5,703.75
  4. Step 4: Simplify right side
    6,617.43x = 56,587,759.31
  5. Step 5: Solve for x
    x = 56,587,759.31/6,617.43
  6. Step 6: Final answer
    x = 8,551.32

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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.