Home / 15,028.45-20,739.13-8,314

Finding the Fourth Proportional to 15,028.45, 20,739.13 and 8,314

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Solution

The fourth proportional to 15,028.45, 20,739.13 and 8,314 is: 11,473.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.45 : 20,739.13 = 8,314 : x
  2. Step 2: Convert to fraction form
    15,028.45/20,739.13 = 8,314/x
  3. Step 3: Cross multiply
    15,028.45x = 20,739.13 × 8,314
  4. Step 4: Simplify right side
    15,028.45x = 172,425,126.82
  5. Step 5: Solve for x
    x = 172,425,126.82/15,028.45
  6. Step 6: Final answer
    x = 11,473.25

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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.