Home / 11,381.12-17,079.66-4,717.72

Finding the Fourth Proportional to 11,381.12, 17,079.66 and 4,717.72

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Solution

The fourth proportional to 11,381.12, 17,079.66 and 4,717.72 is: 7,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.12 : 17,079.66 = 4,717.72 : x
  2. Step 2: Convert to fraction form
    11,381.12/17,079.66 = 4,717.72/x
  3. Step 3: Cross multiply
    11,381.12x = 17,079.66 × 4,717.72
  4. Step 4: Simplify right side
    11,381.12x = 80,577,074.92
  5. Step 5: Solve for x
    x = 80,577,074.92/11,381.12
  6. Step 6: Final answer
    x = 7,079.89

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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.