Home / 19,110.26-28,667.20-7,424.38

Finding the Fourth Proportional to 19,110.26, 28,667.20 and 7,424.38

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Solution

The fourth proportional to 19,110.26, 28,667.20 and 7,424.38 is: 11,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.26 : 28,667.20 = 7,424.38 : x
  2. Step 2: Convert to fraction form
    19,110.26/28,667.20 = 7,424.38/x
  3. Step 3: Cross multiply
    19,110.26x = 28,667.20 × 7,424.38
  4. Step 4: Simplify right side
    19,110.26x = 212,836,186.34
  5. Step 5: Solve for x
    x = 212,836,186.34/19,110.26
  6. Step 6: Final answer
    x = 11,137.27

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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.