Home / 10,654.41-15,981.75-4,080.99

Finding the Fourth Proportional to 10,654.41, 15,981.75 and 4,080.99

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Solution

The fourth proportional to 10,654.41, 15,981.75 and 4,080.99 is: 6,121.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.41 : 15,981.75 = 4,080.99 : x
  2. Step 2: Convert to fraction form
    10,654.41/15,981.75 = 4,080.99/x
  3. Step 3: Cross multiply
    10,654.41x = 15,981.75 × 4,080.99
  4. Step 4: Simplify right side
    10,654.41x = 65,221,361.93
  5. Step 5: Solve for x
    x = 65,221,361.93/10,654.41
  6. Step 6: Final answer
    x = 6,121.54

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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.