Home / 11,749.25-16,222.21-8,206.31

Finding the Fourth Proportional to 11,749.25, 16,222.21 and 8,206.31

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Solution

The fourth proportional to 11,749.25, 16,222.21 and 8,206.31 is: 11,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.25 : 16,222.21 = 8,206.31 : x
  2. Step 2: Convert to fraction form
    11,749.25/16,222.21 = 8,206.31/x
  3. Step 3: Cross multiply
    11,749.25x = 16,222.21 × 8,206.31
  4. Step 4: Simplify right side
    11,749.25x = 133,124,504.18
  5. Step 5: Solve for x
    x = 133,124,504.18/11,749.25
  6. Step 6: Final answer
    x = 11,330.47

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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.