Home / 14,221.76-21,334.67-7,556.52

Finding the Fourth Proportional to 14,221.76, 21,334.67 and 7,556.52

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Solution

The fourth proportional to 14,221.76, 21,334.67 and 7,556.52 is: 11,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.76 : 21,334.67 = 7,556.52 : x
  2. Step 2: Convert to fraction form
    14,221.76/21,334.67 = 7,556.52/x
  3. Step 3: Cross multiply
    14,221.76x = 21,334.67 × 7,556.52
  4. Step 4: Simplify right side
    14,221.76x = 161,215,864.85
  5. Step 5: Solve for x
    x = 161,215,864.85/14,221.76
  6. Step 6: Final answer
    x = 11,335.86

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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.