Home / 7,677.28-11,516.56-3,293.68

Finding the Fourth Proportional to 7,677.28, 11,516.56 and 3,293.68

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Solution

The fourth proportional to 7,677.28, 11,516.56 and 3,293.68 is: 4,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,677.28 : 11,516.56 = 3,293.68 : x
  2. Step 2: Convert to fraction form
    7,677.28/11,516.56 = 3,293.68/x
  3. Step 3: Cross multiply
    7,677.28x = 11,516.56 × 3,293.68
  4. Step 4: Simplify right side
    7,677.28x = 37,931,863.34
  5. Step 5: Solve for x
    x = 37,931,863.34/7,677.28
  6. Step 6: Final answer
    x = 4,940.79

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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.