Home / 13,127.35-19,699.22-8,747.88

Finding the Fourth Proportional to 13,127.35, 19,699.22 and 8,747.88

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Solution

The fourth proportional to 13,127.35, 19,699.22 and 8,747.88 is: 13,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.35 : 19,699.22 = 8,747.88 : x
  2. Step 2: Convert to fraction form
    13,127.35/19,699.22 = 8,747.88/x
  3. Step 3: Cross multiply
    13,127.35x = 19,699.22 × 8,747.88
  4. Step 4: Simplify right side
    13,127.35x = 172,326,270.42
  5. Step 5: Solve for x
    x = 172,326,270.42/13,127.35
  6. Step 6: Final answer
    x = 13,127.28

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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.