Home / 9,861.55-13,610.22-6,511.39

Finding the Fourth Proportional to 9,861.55, 13,610.22 and 6,511.39

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Solution

The fourth proportional to 9,861.55, 13,610.22 and 6,511.39 is: 8,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.55 : 13,610.22 = 6,511.39 : x
  2. Step 2: Convert to fraction form
    9,861.55/13,610.22 = 6,511.39/x
  3. Step 3: Cross multiply
    9,861.55x = 13,610.22 × 6,511.39
  4. Step 4: Simplify right side
    9,861.55x = 88,621,450.41
  5. Step 5: Solve for x
    x = 88,621,450.41/9,861.55
  6. Step 6: Final answer
    x = 8,986.56

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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.