Home / 13,989.87-20,993.45-5,669.96

Finding the Fourth Proportional to 13,989.87, 20,993.45 and 5,669.96

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Solution

The fourth proportional to 13,989.87, 20,993.45 and 5,669.96 is: 8,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.87 : 20,993.45 = 5,669.96 : x
  2. Step 2: Convert to fraction form
    13,989.87/20,993.45 = 5,669.96/x
  3. Step 3: Cross multiply
    13,989.87x = 20,993.45 × 5,669.96
  4. Step 4: Simplify right side
    13,989.87x = 119,031,888.44
  5. Step 5: Solve for x
    x = 119,031,888.44/13,989.87
  6. Step 6: Final answer
    x = 8,508.43

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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.