Home / 7,887.12-11,837.97-3,994.26

Finding the Fourth Proportional to 7,887.12, 11,837.97 and 3,994.26

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Solution

The fourth proportional to 7,887.12, 11,837.97 and 3,994.26 is: 5,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.12 : 11,837.97 = 3,994.26 : x
  2. Step 2: Convert to fraction form
    7,887.12/11,837.97 = 3,994.26/x
  3. Step 3: Cross multiply
    7,887.12x = 11,837.97 × 3,994.26
  4. Step 4: Simplify right side
    7,887.12x = 47,283,930.05
  5. Step 5: Solve for x
    x = 47,283,930.05/7,887.12
  6. Step 6: Final answer
    x = 5,995.08

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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.