Home / 7,994.70-11,985.57-3,609.36

Finding the Fourth Proportional to 7,994.70, 11,985.57 and 3,609.36

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Solution

The fourth proportional to 7,994.70, 11,985.57 and 3,609.36 is: 5,411.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.70 : 11,985.57 = 3,609.36 : x
  2. Step 2: Convert to fraction form
    7,994.70/11,985.57 = 3,609.36/x
  3. Step 3: Cross multiply
    7,994.70x = 11,985.57 × 3,609.36
  4. Step 4: Simplify right side
    7,994.70x = 43,260,236.94
  5. Step 5: Solve for x
    x = 43,260,236.94/7,994.70
  6. Step 6: Final answer
    x = 5,411.11

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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.