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Finding the Fourth Proportional to 15,028.24, 20,742.24 and 8,741.44

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Solution

The fourth proportional to 15,028.24, 20,742.24 and 8,741.44 is: 12,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.24 : 20,742.24 = 8,741.44 : x
  2. Step 2: Convert to fraction form
    15,028.24/20,742.24 = 8,741.44/x
  3. Step 3: Cross multiply
    15,028.24x = 20,742.24 × 8,741.44
  4. Step 4: Simplify right side
    15,028.24x = 181,317,046.43
  5. Step 5: Solve for x
    x = 181,317,046.43/15,028.24
  6. Step 6: Final answer
    x = 12,065.09

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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.