Home / 14,704.92-20,292.80-7,990.56

Finding the Fourth Proportional to 14,704.92, 20,292.80 and 7,990.56

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Solution

The fourth proportional to 14,704.92, 20,292.80 and 7,990.56 is: 11,026.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,704.92 : 20,292.80 = 7,990.56 : x
  2. Step 2: Convert to fraction form
    14,704.92/20,292.80 = 7,990.56/x
  3. Step 3: Cross multiply
    14,704.92x = 20,292.80 × 7,990.56
  4. Step 4: Simplify right side
    14,704.92x = 162,150,835.97
  5. Step 5: Solve for x
    x = 162,150,835.97/14,704.92
  6. Step 6: Final answer
    x = 11,026.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.