Home / 9,861.12-13,609.68-6,333.60

Finding the Fourth Proportional to 9,861.12, 13,609.68 and 6,333.60

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Solution

The fourth proportional to 9,861.12, 13,609.68 and 6,333.60 is: 8,741.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.12 : 13,609.68 = 6,333.60 : x
  2. Step 2: Convert to fraction form
    9,861.12/13,609.68 = 6,333.60/x
  3. Step 3: Cross multiply
    9,861.12x = 13,609.68 × 6,333.60
  4. Step 4: Simplify right side
    9,861.12x = 86,198,269.25
  5. Step 5: Solve for x
    x = 86,198,269.25/9,861.12
  6. Step 6: Final answer
    x = 8,741.23

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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.