Home / 11,981.46-17,972.25-5,740.02

Finding the Fourth Proportional to 11,981.46, 17,972.25 and 5,740.02

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Solution

The fourth proportional to 11,981.46, 17,972.25 and 5,740.02 is: 8,610.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.46 : 17,972.25 = 5,740.02 : x
  2. Step 2: Convert to fraction form
    11,981.46/17,972.25 = 5,740.02/x
  3. Step 3: Cross multiply
    11,981.46x = 17,972.25 × 5,740.02
  4. Step 4: Simplify right side
    11,981.46x = 103,161,074.45
  5. Step 5: Solve for x
    x = 103,161,074.45/11,981.46
  6. Step 6: Final answer
    x = 8,610.06

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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.