Home / 11,163.36-15,404.88-6,447.36

Finding the Fourth Proportional to 11,163.36, 15,404.88 and 6,447.36

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Solution

The fourth proportional to 11,163.36, 15,404.88 and 6,447.36 is: 8,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.36 : 15,404.88 = 6,447.36 : x
  2. Step 2: Convert to fraction form
    11,163.36/15,404.88 = 6,447.36/x
  3. Step 3: Cross multiply
    11,163.36x = 15,404.88 × 6,447.36
  4. Step 4: Simplify right side
    11,163.36x = 99,320,807.12
  5. Step 5: Solve for x
    x = 99,320,807.12/11,163.36
  6. Step 6: Final answer
    x = 8,897.04

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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.