Home / 13,925.25-19,217.25-7,638.03

Finding the Fourth Proportional to 13,925.25, 19,217.25 and 7,638.03

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Solution

The fourth proportional to 13,925.25, 19,217.25 and 7,638.03 is: 10,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.25 : 19,217.25 = 7,638.03 : x
  2. Step 2: Convert to fraction form
    13,925.25/19,217.25 = 7,638.03/x
  3. Step 3: Cross multiply
    13,925.25x = 19,217.25 × 7,638.03
  4. Step 4: Simplify right side
    13,925.25x = 146,781,932.02
  5. Step 5: Solve for x
    x = 146,781,932.02/13,925.25
  6. Step 6: Final answer
    x = 10,540.70

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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.