Home / 14,883.03-20,538.53-8,168.78

Finding the Fourth Proportional to 14,883.03, 20,538.53 and 8,168.78

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Solution

The fourth proportional to 14,883.03, 20,538.53 and 8,168.78 is: 11,272.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,883.03 : 20,538.53 = 8,168.78 : x
  2. Step 2: Convert to fraction form
    14,883.03/20,538.53 = 8,168.78/x
  3. Step 3: Cross multiply
    14,883.03x = 20,538.53 × 8,168.78
  4. Step 4: Simplify right side
    14,883.03x = 167,774,589.56
  5. Step 5: Solve for x
    x = 167,774,589.56/14,883.03
  6. Step 6: Final answer
    x = 11,272.88

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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.