Home / 18,932.56-28,406.10-7,246.60

Finding the Fourth Proportional to 18,932.56, 28,406.10 and 7,246.60

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Solution

The fourth proportional to 18,932.56, 28,406.10 and 7,246.60 is: 10,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.56 : 28,406.10 = 7,246.60 : x
  2. Step 2: Convert to fraction form
    18,932.56/28,406.10 = 7,246.60/x
  3. Step 3: Cross multiply
    18,932.56x = 28,406.10 × 7,246.60
  4. Step 4: Simplify right side
    18,932.56x = 205,847,644.26
  5. Step 5: Solve for x
    x = 205,847,644.26/18,932.56
  6. Step 6: Final answer
    x = 10,872.68

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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.