Home / 18,933.99-28,404.36-7,834.65

Finding the Fourth Proportional to 18,933.99, 28,404.36 and 7,834.65

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Solution

The fourth proportional to 18,933.99, 28,404.36 and 7,834.65 is: 11,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.99 : 28,404.36 = 7,834.65 : x
  2. Step 2: Convert to fraction form
    18,933.99/28,404.36 = 7,834.65/x
  3. Step 3: Cross multiply
    18,933.99x = 28,404.36 × 7,834.65
  4. Step 4: Simplify right side
    18,933.99x = 222,538,219.07
  5. Step 5: Solve for x
    x = 222,538,219.07/18,933.99
  6. Step 6: Final answer
    x = 11,753.37

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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.