Home / 13,127.62-19,654.90-11,235.86

Finding the Fourth Proportional to 13,127.62, 19,654.90 and 11,235.86

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Solution

The fourth proportional to 13,127.62, 19,654.90 and 11,235.86 is: 16,822.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.62 : 19,654.90 = 11,235.86 : x
  2. Step 2: Convert to fraction form
    13,127.62/19,654.90 = 11,235.86/x
  3. Step 3: Cross multiply
    13,127.62x = 19,654.90 × 11,235.86
  4. Step 4: Simplify right side
    13,127.62x = 220,839,825.82
  5. Step 5: Solve for x
    x = 220,839,825.82/13,127.62
  6. Step 6: Final answer
    x = 16,822.53

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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.