Home / 10,578.12-15,855.84-5,028

Finding the Fourth Proportional to 10,578.12, 15,855.84 and 5,028

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Solution

The fourth proportional to 10,578.12, 15,855.84 and 5,028 is: 7,536.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,578.12 : 15,855.84 = 5,028 : x
  2. Step 2: Convert to fraction form
    10,578.12/15,855.84 = 5,028/x
  3. Step 3: Cross multiply
    10,578.12x = 15,855.84 × 5,028
  4. Step 4: Simplify right side
    10,578.12x = 79,723,163.52
  5. Step 5: Solve for x
    x = 79,723,163.52/10,578.12
  6. Step 6: Final answer
    x = 7,536.61

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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.