Home / 15,991.80-23,982.84-5,601.12

Finding the Fourth Proportional to 15,991.80, 23,982.84 and 5,601.12

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Solution

The fourth proportional to 15,991.80, 23,982.84 and 5,601.12 is: 8,399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.80 : 23,982.84 = 5,601.12 : x
  2. Step 2: Convert to fraction form
    15,991.80/23,982.84 = 5,601.12/x
  3. Step 3: Cross multiply
    15,991.80x = 23,982.84 × 5,601.12
  4. Step 4: Simplify right side
    15,991.80x = 134,330,764.78
  5. Step 5: Solve for x
    x = 134,330,764.78/15,991.80
  6. Step 6: Final answer
    x = 8,399.98

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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.