Home / 11,163.64-15,407.24-6,447.92

Finding the Fourth Proportional to 11,163.64, 15,407.24 and 6,447.92

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Solution

The fourth proportional to 11,163.64, 15,407.24 and 6,447.92 is: 8,898.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.64 : 15,407.24 = 6,447.92 : x
  2. Step 2: Convert to fraction form
    11,163.64/15,407.24 = 6,447.92/x
  3. Step 3: Cross multiply
    11,163.64x = 15,407.24 × 6,447.92
  4. Step 4: Simplify right side
    11,163.64x = 99,344,650.94
  5. Step 5: Solve for x
    x = 99,344,650.94/11,163.64
  6. Step 6: Final answer
    x = 8,898.95

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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.