Home / 9,861.66-13,610.37-5,611.89

Finding the Fourth Proportional to 9,861.66, 13,610.37 and 5,611.89

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Solution

The fourth proportional to 9,861.66, 13,610.37 and 5,611.89 is: 7,745.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.66 : 13,610.37 = 5,611.89 : x
  2. Step 2: Convert to fraction form
    9,861.66/13,610.37 = 5,611.89/x
  3. Step 3: Cross multiply
    9,861.66x = 13,610.37 × 5,611.89
  4. Step 4: Simplify right side
    9,861.66x = 76,379,899.30
  5. Step 5: Solve for x
    x = 76,379,899.30/9,861.66
  6. Step 6: Final answer
    x = 7,745.14

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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.