Home / 11,222.26-15,485.80-6,506.85

Finding the Fourth Proportional to 11,222.26, 15,485.80 and 6,506.85

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Solution

The fourth proportional to 11,222.26, 15,485.80 and 6,506.85 is: 8,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.26 : 15,485.80 = 6,506.85 : x
  2. Step 2: Convert to fraction form
    11,222.26/15,485.80 = 6,506.85/x
  3. Step 3: Cross multiply
    11,222.26x = 15,485.80 × 6,506.85
  4. Step 4: Simplify right side
    11,222.26x = 100,763,777.73
  5. Step 5: Solve for x
    x = 100,763,777.73/11,222.26
  6. Step 6: Final answer
    x = 8,978.92

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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.