Home / 18,910.14-28,349.01-7,231.56

Finding the Fourth Proportional to 18,910.14, 28,349.01 and 7,231.56

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Solution

The fourth proportional to 18,910.14, 28,349.01 and 7,231.56 is: 10,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.14 : 28,349.01 = 7,231.56 : x
  2. Step 2: Convert to fraction form
    18,910.14/28,349.01 = 7,231.56/x
  3. Step 3: Cross multiply
    18,910.14x = 28,349.01 × 7,231.56
  4. Step 4: Simplify right side
    18,910.14x = 205,007,566.76
  5. Step 5: Solve for x
    x = 205,007,566.76/18,910.14
  6. Step 6: Final answer
    x = 10,841.14

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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.