Home / 7,990.90-11,027.49-4,454.17

Finding the Fourth Proportional to 7,990.90, 11,027.49 and 4,454.17

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Solution

The fourth proportional to 7,990.90, 11,027.49 and 4,454.17 is: 6,146.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.90 : 11,027.49 = 4,454.17 : x
  2. Step 2: Convert to fraction form
    7,990.90/11,027.49 = 4,454.17/x
  3. Step 3: Cross multiply
    7,990.90x = 11,027.49 × 4,454.17
  4. Step 4: Simplify right side
    7,990.90x = 49,118,315.13
  5. Step 5: Solve for x
    x = 49,118,315.13/7,990.90
  6. Step 6: Final answer
    x = 6,146.78

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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.