Home / 11,086.12-15,277.80-7,936.84

Finding the Fourth Proportional to 11,086.12, 15,277.80 and 7,936.84

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Solution

The fourth proportional to 11,086.12, 15,277.80 and 7,936.84 is: 10,937.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,086.12 : 15,277.80 = 7,936.84 : x
  2. Step 2: Convert to fraction form
    11,086.12/15,277.80 = 7,936.84/x
  3. Step 3: Cross multiply
    11,086.12x = 15,277.80 × 7,936.84
  4. Step 4: Simplify right side
    11,086.12x = 121,257,454.15
  5. Step 5: Solve for x
    x = 121,257,454.15/11,086.12
  6. Step 6: Final answer
    x = 10,937.77

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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.