Home / 7,991.17-11,027.88-4,454.61

Finding the Fourth Proportional to 7,991.17, 11,027.88 and 4,454.61

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Solution

The fourth proportional to 7,991.17, 11,027.88 and 4,454.61 is: 6,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.17 : 11,027.88 = 4,454.61 : x
  2. Step 2: Convert to fraction form
    7,991.17/11,027.88 = 4,454.61/x
  3. Step 3: Cross multiply
    7,991.17x = 11,027.88 × 4,454.61
  4. Step 4: Simplify right side
    7,991.17x = 49,124,904.53
  5. Step 5: Solve for x
    x = 49,124,904.53/7,991.17
  6. Step 6: Final answer
    x = 6,147.40

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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.