Home / 19,109.43-28,664.15-7,425.41

Finding the Fourth Proportional to 19,109.43, 28,664.15 and 7,425.41

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Solution

The fourth proportional to 19,109.43, 28,664.15 and 7,425.41 is: 11,138.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.43 : 28,664.15 = 7,425.41 : x
  2. Step 2: Convert to fraction form
    19,109.43/28,664.15 = 7,425.41/x
  3. Step 3: Cross multiply
    19,109.43x = 28,664.15 × 7,425.41
  4. Step 4: Simplify right side
    19,109.43x = 212,842,885.60
  5. Step 5: Solve for x
    x = 212,842,885.60/19,109.43
  6. Step 6: Final answer
    x = 11,138.11

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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.