Home / 11,751.28-16,217.81-6,447.13

Finding the Fourth Proportional to 11,751.28, 16,217.81 and 6,447.13

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Solution

The fourth proportional to 11,751.28, 16,217.81 and 6,447.13 is: 8,897.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.28 : 16,217.81 = 6,447.13 : x
  2. Step 2: Convert to fraction form
    11,751.28/16,217.81 = 6,447.13/x
  3. Step 3: Cross multiply
    11,751.28x = 16,217.81 × 6,447.13
  4. Step 4: Simplify right side
    11,751.28x = 104,558,297.15
  5. Step 5: Solve for x
    x = 104,558,297.15/11,751.28
  6. Step 6: Final answer
    x = 8,897.61

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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.