Home / 15,014.44-20,720.04-8,299.88

Finding the Fourth Proportional to 15,014.44, 20,720.04 and 8,299.88

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Solution

The fourth proportional to 15,014.44, 20,720.04 and 8,299.88 is: 11,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014.44 : 20,720.04 = 8,299.88 : x
  2. Step 2: Convert to fraction form
    15,014.44/20,720.04 = 8,299.88/x
  3. Step 3: Cross multiply
    15,014.44x = 20,720.04 × 8,299.88
  4. Step 4: Simplify right side
    15,014.44x = 171,973,845.60
  5. Step 5: Solve for x
    x = 171,973,845.60/15,014.44
  6. Step 6: Final answer
    x = 11,453.90

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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.