Home / 13,847.38-20,775.92-8,647.18

Finding the Fourth Proportional to 13,847.38, 20,775.92 and 8,647.18

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Solution

The fourth proportional to 13,847.38, 20,775.92 and 8,647.18 is: 12,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.38 : 20,775.92 = 8,647.18 : x
  2. Step 2: Convert to fraction form
    13,847.38/20,775.92 = 8,647.18/x
  3. Step 3: Cross multiply
    13,847.38x = 20,775.92 × 8,647.18
  4. Step 4: Simplify right side
    13,847.38x = 179,653,016.03
  5. Step 5: Solve for x
    x = 179,653,016.03/13,847.38
  6. Step 6: Final answer
    x = 12,973.80

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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.