Home / 7,991.15-11,986.74-2,795.81

Finding the Fourth Proportional to 7,991.15, 11,986.74 and 2,795.81

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Solution

The fourth proportional to 7,991.15, 11,986.74 and 2,795.81 is: 4,193.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.15 : 11,986.74 = 2,795.81 : x
  2. Step 2: Convert to fraction form
    7,991.15/11,986.74 = 2,795.81/x
  3. Step 3: Cross multiply
    7,991.15x = 11,986.74 × 2,795.81
  4. Step 4: Simplify right side
    7,991.15x = 33,512,587.63
  5. Step 5: Solve for x
    x = 33,512,587.63/7,991.15
  6. Step 6: Final answer
    x = 4,193.72

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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.