Home / 13,889.09-19,163.97-8,225.61

Finding the Fourth Proportional to 13,889.09, 19,163.97 and 8,225.61

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Solution

The fourth proportional to 13,889.09, 19,163.97 and 8,225.61 is: 11,349.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.09 : 19,163.97 = 8,225.61 : x
  2. Step 2: Convert to fraction form
    13,889.09/19,163.97 = 8,225.61/x
  3. Step 3: Cross multiply
    13,889.09x = 19,163.97 × 8,225.61
  4. Step 4: Simplify right side
    13,889.09x = 157,635,343.27
  5. Step 5: Solve for x
    x = 157,635,343.27/13,889.09
  6. Step 6: Final answer
    x = 11,349.58

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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.