Home / 10,918.02-15,067.22-6,138.79

Finding the Fourth Proportional to 10,918.02, 15,067.22 and 6,138.79

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Solution

The fourth proportional to 10,918.02, 15,067.22 and 6,138.79 is: 8,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.02 : 15,067.22 = 6,138.79 : x
  2. Step 2: Convert to fraction form
    10,918.02/15,067.22 = 6,138.79/x
  3. Step 3: Cross multiply
    10,918.02x = 15,067.22 × 6,138.79
  4. Step 4: Simplify right side
    10,918.02x = 92,494,499.46
  5. Step 5: Solve for x
    x = 92,494,499.46/10,918.02
  6. Step 6: Final answer
    x = 8,471.73

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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.