Home / 18,727.56-28,096.56-5,580.36

Finding the Fourth Proportional to 18,727.56, 28,096.56 and 5,580.36

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Solution

The fourth proportional to 18,727.56, 28,096.56 and 5,580.36 is: 8,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.56 : 28,096.56 = 5,580.36 : x
  2. Step 2: Convert to fraction form
    18,727.56/28,096.56 = 5,580.36/x
  3. Step 3: Cross multiply
    18,727.56x = 28,096.56 × 5,580.36
  4. Step 4: Simplify right side
    18,727.56x = 156,788,919.56
  5. Step 5: Solve for x
    x = 156,788,919.56/18,727.56
  6. Step 6: Final answer
    x = 8,372.10

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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.