Home / 13,926-19,217.88-7,638.39

Finding the Fourth Proportional to 13,926, 19,217.88 and 7,638.39

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Solution

The fourth proportional to 13,926, 19,217.88 and 7,638.39 is: 10,540.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926 : 19,217.88 = 7,638.39 : x
  2. Step 2: Convert to fraction form
    13,926/19,217.88 = 7,638.39/x
  3. Step 3: Cross multiply
    13,926x = 19,217.88 × 7,638.39
  4. Step 4: Simplify right side
    13,926x = 146,793,662.41
  5. Step 5: Solve for x
    x = 146,793,662.41/13,926
  6. Step 6: Final answer
    x = 10,540.98

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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.