Home / 14,221.56-21,333.30-7,976.88

Finding the Fourth Proportional to 14,221.56, 21,333.30 and 7,976.88

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Solution

The fourth proportional to 14,221.56, 21,333.30 and 7,976.88 is: 11,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.56 : 21,333.30 = 7,976.88 : x
  2. Step 2: Convert to fraction form
    14,221.56/21,333.30 = 7,976.88/x
  3. Step 3: Cross multiply
    14,221.56x = 21,333.30 × 7,976.88
  4. Step 4: Simplify right side
    14,221.56x = 170,173,174.10
  5. Step 5: Solve for x
    x = 170,173,174.10/14,221.56
  6. Step 6: Final answer
    x = 11,965.86

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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.