Home / 7,664.20-11,496.40-3,278.92

Finding the Fourth Proportional to 7,664.20, 11,496.40 and 3,278.92

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Solution

The fourth proportional to 7,664.20, 11,496.40 and 3,278.92 is: 4,918.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.20 : 11,496.40 = 3,278.92 : x
  2. Step 2: Convert to fraction form
    7,664.20/11,496.40 = 3,278.92/x
  3. Step 3: Cross multiply
    7,664.20x = 11,496.40 × 3,278.92
  4. Step 4: Simplify right side
    7,664.20x = 37,695,775.89
  5. Step 5: Solve for x
    x = 37,695,775.89/7,664.20
  6. Step 6: Final answer
    x = 4,918.42

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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.