Home / 14,882.88-20,538.31-8,168.62

Finding the Fourth Proportional to 14,882.88, 20,538.31 and 8,168.62

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Solution

The fourth proportional to 14,882.88, 20,538.31 and 8,168.62 is: 11,272.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,882.88 : 20,538.31 = 8,168.62 : x
  2. Step 2: Convert to fraction form
    14,882.88/20,538.31 = 8,168.62/x
  3. Step 3: Cross multiply
    14,882.88x = 20,538.31 × 8,168.62
  4. Step 4: Simplify right side
    14,882.88x = 167,769,649.83
  5. Step 5: Solve for x
    x = 167,769,649.83/14,882.88
  6. Step 6: Final answer
    x = 11,272.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.