Home / 10,620.99-15,933.51-5,074.77

Finding the Fourth Proportional to 10,620.99, 15,933.51 and 5,074.77

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Solution

The fourth proportional to 10,620.99, 15,933.51 and 5,074.77 is: 7,613.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.99 : 15,933.51 = 5,074.77 : x
  2. Step 2: Convert to fraction form
    10,620.99/15,933.51 = 5,074.77/x
  3. Step 3: Cross multiply
    10,620.99x = 15,933.51 × 5,074.77
  4. Step 4: Simplify right side
    10,620.99x = 80,858,898.54
  5. Step 5: Solve for x
    x = 80,858,898.54/10,620.99
  6. Step 6: Final answer
    x = 7,613.12

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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.