Home / 13,112.72-18,093.99-7,447.43

Finding the Fourth Proportional to 13,112.72, 18,093.99 and 7,447.43

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Solution

The fourth proportional to 13,112.72, 18,093.99 and 7,447.43 is: 10,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.72 : 18,093.99 = 7,447.43 : x
  2. Step 2: Convert to fraction form
    13,112.72/18,093.99 = 7,447.43/x
  3. Step 3: Cross multiply
    13,112.72x = 18,093.99 × 7,447.43
  4. Step 4: Simplify right side
    13,112.72x = 134,753,723.95
  5. Step 5: Solve for x
    x = 134,753,723.95/13,112.72
  6. Step 6: Final answer
    x = 10,276.57

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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.