Home / 19,164.40-28,729.72-7,469.43

Finding the Fourth Proportional to 19,164.40, 28,729.72 and 7,469.43

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Solution

The fourth proportional to 19,164.40, 28,729.72 and 7,469.43 is: 11,197.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.40 : 28,729.72 = 7,469.43 : x
  2. Step 2: Convert to fraction form
    19,164.40/28,729.72 = 7,469.43/x
  3. Step 3: Cross multiply
    19,164.40x = 28,729.72 × 7,469.43
  4. Step 4: Simplify right side
    19,164.40x = 214,594,632.46
  5. Step 5: Solve for x
    x = 214,594,632.46/19,164.40
  6. Step 6: Final answer
    x = 11,197.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.