Home / 7,845.67-11,749.96-6,191.16

Finding the Fourth Proportional to 7,845.67, 11,749.96 and 6,191.16

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Solution

The fourth proportional to 7,845.67, 11,749.96 and 6,191.16 is: 9,272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.67 : 11,749.96 = 6,191.16 : x
  2. Step 2: Convert to fraction form
    7,845.67/11,749.96 = 6,191.16/x
  3. Step 3: Cross multiply
    7,845.67x = 11,749.96 × 6,191.16
  4. Step 4: Simplify right side
    7,845.67x = 72,745,882.35
  5. Step 5: Solve for x
    x = 72,745,882.35/7,845.67
  6. Step 6: Final answer
    x = 9,272.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.