Home / 11,135.44-15,369.68-6,422.56

Finding the Fourth Proportional to 11,135.44, 15,369.68 and 6,422.56

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Solution

The fourth proportional to 11,135.44, 15,369.68 and 6,422.56 is: 8,864.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.44 : 15,369.68 = 6,422.56 : x
  2. Step 2: Convert to fraction form
    11,135.44/15,369.68 = 6,422.56/x
  3. Step 3: Cross multiply
    11,135.44x = 15,369.68 × 6,422.56
  4. Step 4: Simplify right side
    11,135.44x = 98,712,691.98
  5. Step 5: Solve for x
    x = 98,712,691.98/11,135.44
  6. Step 6: Final answer
    x = 8,864.73

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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.