Home / 18,731.28-28,096.74-7,635.36

Finding the Fourth Proportional to 18,731.28, 28,096.74 and 7,635.36

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Solution

The fourth proportional to 18,731.28, 28,096.74 and 7,635.36 is: 11,452.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.28 : 28,096.74 = 7,635.36 : x
  2. Step 2: Convert to fraction form
    18,731.28/28,096.74 = 7,635.36/x
  3. Step 3: Cross multiply
    18,731.28x = 28,096.74 × 7,635.36
  4. Step 4: Simplify right side
    18,731.28x = 214,528,724.73
  5. Step 5: Solve for x
    x = 214,528,724.73/18,731.28
  6. Step 6: Final answer
    x = 11,452.97

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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.