Home / 11,279.64-16,921.88-4,706.48

Finding the Fourth Proportional to 11,279.64, 16,921.88 and 4,706.48

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Solution

The fourth proportional to 11,279.64, 16,921.88 and 4,706.48 is: 7,060.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.64 : 16,921.88 = 4,706.48 : x
  2. Step 2: Convert to fraction form
    11,279.64/16,921.88 = 4,706.48/x
  3. Step 3: Cross multiply
    11,279.64x = 16,921.88 × 4,706.48
  4. Step 4: Simplify right side
    11,279.64x = 79,642,489.78
  5. Step 5: Solve for x
    x = 79,642,489.78/11,279.64
  6. Step 6: Final answer
    x = 7,060.73

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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.