Home / 11,994.17-17,991.10-5,415.75

Finding the Fourth Proportional to 11,994.17, 17,991.10 and 5,415.75

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Solution

The fourth proportional to 11,994.17, 17,991.10 and 5,415.75 is: 8,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,994.17 : 17,991.10 = 5,415.75 : x
  2. Step 2: Convert to fraction form
    11,994.17/17,991.10 = 5,415.75/x
  3. Step 3: Cross multiply
    11,994.17x = 17,991.10 × 5,415.75
  4. Step 4: Simplify right side
    11,994.17x = 97,435,272.75
  5. Step 5: Solve for x
    x = 97,435,272.75/11,994.17
  6. Step 6: Final answer
    x = 8,123.56

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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.