Home / 11,163.24-15,395.04-8,637.30

Finding the Fourth Proportional to 11,163.24, 15,395.04 and 8,637.30

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Solution

The fourth proportional to 11,163.24, 15,395.04 and 8,637.30 is: 11,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.24 : 15,395.04 = 8,637.30 : x
  2. Step 2: Convert to fraction form
    11,163.24/15,395.04 = 8,637.30/x
  3. Step 3: Cross multiply
    11,163.24x = 15,395.04 × 8,637.30
  4. Step 4: Simplify right side
    11,163.24x = 132,971,578.99
  5. Step 5: Solve for x
    x = 132,971,578.99/11,163.24
  6. Step 6: Final answer
    x = 11,911.56

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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.