Home / 11,015.14-15,208.80-6,771.90

Finding the Fourth Proportional to 11,015.14, 15,208.80 and 6,771.90

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Solution

The fourth proportional to 11,015.14, 15,208.80 and 6,771.90 is: 9,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,015.14 : 15,208.80 = 6,771.90 : x
  2. Step 2: Convert to fraction form
    11,015.14/15,208.80 = 6,771.90/x
  3. Step 3: Cross multiply
    11,015.14x = 15,208.80 × 6,771.90
  4. Step 4: Simplify right side
    11,015.14x = 102,992,376.03
  5. Step 5: Solve for x
    x = 102,992,376.03/11,015.14
  6. Step 6: Final answer
    x = 9,350.07

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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.