Home / 13,760.66-18,990.11-7,793.26

Finding the Fourth Proportional to 13,760.66, 18,990.11 and 7,793.26

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Solution

The fourth proportional to 13,760.66, 18,990.11 and 7,793.26 is: 10,754.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.66 : 18,990.11 = 7,793.26 : x
  2. Step 2: Convert to fraction form
    13,760.66/18,990.11 = 7,793.26/x
  3. Step 3: Cross multiply
    13,760.66x = 18,990.11 × 7,793.26
  4. Step 4: Simplify right side
    13,760.66x = 147,994,864.66
  5. Step 5: Solve for x
    x = 147,994,864.66/13,760.66
  6. Step 6: Final answer
    x = 10,754.92

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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.