Home / 11,238.41-15,512.51-7,049.09

Finding the Fourth Proportional to 11,238.41, 15,512.51 and 7,049.09

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Solution

The fourth proportional to 11,238.41, 15,512.51 and 7,049.09 is: 9,729.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.41 : 15,512.51 = 7,049.09 : x
  2. Step 2: Convert to fraction form
    11,238.41/15,512.51 = 7,049.09/x
  3. Step 3: Cross multiply
    11,238.41x = 15,512.51 × 7,049.09
  4. Step 4: Simplify right side
    11,238.41x = 109,349,079.12
  5. Step 5: Solve for x
    x = 109,349,079.12/11,238.41
  6. Step 6: Final answer
    x = 9,729.94

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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.