Home / 18,795.12-28,192.52-5,647.44

Finding the Fourth Proportional to 18,795.12, 28,192.52 and 5,647.44

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Solution

The fourth proportional to 18,795.12, 28,192.52 and 5,647.44 is: 8,471.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.12 : 28,192.52 = 5,647.44 : x
  2. Step 2: Convert to fraction form
    18,795.12/28,192.52 = 5,647.44/x
  3. Step 3: Cross multiply
    18,795.12x = 28,192.52 × 5,647.44
  4. Step 4: Simplify right side
    18,795.12x = 159,215,565.15
  5. Step 5: Solve for x
    x = 159,215,565.15/18,795.12
  6. Step 6: Final answer
    x = 8,471.11

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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.