Home / 14,186.89-21,279.52-5,422.69

Finding the Fourth Proportional to 14,186.89, 21,279.52 and 5,422.69

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Solution

The fourth proportional to 14,186.89, 21,279.52 and 5,422.69 is: 8,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,186.89 : 21,279.52 = 5,422.69 : x
  2. Step 2: Convert to fraction form
    14,186.89/21,279.52 = 5,422.69/x
  3. Step 3: Cross multiply
    14,186.89x = 21,279.52 × 5,422.69
  4. Step 4: Simplify right side
    14,186.89x = 115,392,120.35
  5. Step 5: Solve for x
    x = 115,392,120.35/14,186.89
  6. Step 6: Final answer
    x = 8,133.72

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1.5x scale

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.