Home / 7,665.28-11,497.50-2,118.66

Finding the Fourth Proportional to 7,665.28, 11,497.50 and 2,118.66

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Solution

The fourth proportional to 7,665.28, 11,497.50 and 2,118.66 is: 3,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.28 : 11,497.50 = 2,118.66 : x
  2. Step 2: Convert to fraction form
    7,665.28/11,497.50 = 2,118.66/x
  3. Step 3: Cross multiply
    7,665.28x = 11,497.50 × 2,118.66
  4. Step 4: Simplify right side
    7,665.28x = 24,359,293.35
  5. Step 5: Solve for x
    x = 24,359,293.35/7,665.28
  6. Step 6: Final answer
    x = 3,177.87

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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.