Home / 19,110.60-28,669.68-7,425

Finding the Fourth Proportional to 19,110.60, 28,669.68 and 7,425

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Solution

The fourth proportional to 19,110.60, 28,669.68 and 7,425 is: 11,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.60 : 28,669.68 = 7,425 : x
  2. Step 2: Convert to fraction form
    19,110.60/28,669.68 = 7,425/x
  3. Step 3: Cross multiply
    19,110.60x = 28,669.68 × 7,425
  4. Step 4: Simplify right side
    19,110.60x = 212,872,374
  5. Step 5: Solve for x
    x = 212,872,374/19,110.60
  6. Step 6: Final answer
    x = 11,138.97

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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.