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Finding the Fourth Proportional to 6,351.96, 8,759.99 and 4,111.50

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Solution

The fourth proportional to 6,351.96, 8,759.99 and 4,111.50 is: 5,670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,351.96 : 8,759.99 = 4,111.50 : x
  2. Step 2: Convert to fraction form
    6,351.96/8,759.99 = 4,111.50/x
  3. Step 3: Cross multiply
    6,351.96x = 8,759.99 × 4,111.50
  4. Step 4: Simplify right side
    6,351.96x = 36,016,678.33
  5. Step 5: Solve for x
    x = 36,016,678.33/6,351.96
  6. Step 6: Final answer
    x = 5,670.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.