Home / 14,147.22-21,213.54-9,711.66

Finding the Fourth Proportional to 14,147.22, 21,213.54 and 9,711.66

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Solution

The fourth proportional to 14,147.22, 21,213.54 and 9,711.66 is: 14,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.22 : 21,213.54 = 9,711.66 : x
  2. Step 2: Convert to fraction form
    14,147.22/21,213.54 = 9,711.66/x
  3. Step 3: Cross multiply
    14,147.22x = 21,213.54 × 9,711.66
  4. Step 4: Simplify right side
    14,147.22x = 206,018,687.88
  5. Step 5: Solve for x
    x = 206,018,687.88/14,147.22
  6. Step 6: Final answer
    x = 14,562.49

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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.