Home / 7,165.91-10,765.20-6,181.76

Finding the Fourth Proportional to 7,165.91, 10,765.20 and 6,181.76

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Solution

The fourth proportional to 7,165.91, 10,765.20 and 6,181.76 is: 9,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.91 : 10,765.20 = 6,181.76 : x
  2. Step 2: Convert to fraction form
    7,165.91/10,765.20 = 6,181.76/x
  3. Step 3: Cross multiply
    7,165.91x = 10,765.20 × 6,181.76
  4. Step 4: Simplify right side
    7,165.91x = 66,547,882.75
  5. Step 5: Solve for x
    x = 66,547,882.75/7,165.91
  6. Step 6: Final answer
    x = 9,286.73

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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.