Home / 7,718.20-11,567.82-3,330.76

Finding the Fourth Proportional to 7,718.20, 11,567.82 and 3,330.76

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Solution

The fourth proportional to 7,718.20, 11,567.82 and 3,330.76 is: 4,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.20 : 11,567.82 = 3,330.76 : x
  2. Step 2: Convert to fraction form
    7,718.20/11,567.82 = 3,330.76/x
  3. Step 3: Cross multiply
    7,718.20x = 11,567.82 × 3,330.76
  4. Step 4: Simplify right side
    7,718.20x = 38,529,632.14
  5. Step 5: Solve for x
    x = 38,529,632.14/7,718.20
  6. Step 6: Final answer
    x = 4,992.05

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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.