Home / 13,111.26-19,666.68-4,791.24

Finding the Fourth Proportional to 13,111.26, 19,666.68 and 4,791.24

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Solution

The fourth proportional to 13,111.26, 19,666.68 and 4,791.24 is: 7,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111.26 : 19,666.68 = 4,791.24 : x
  2. Step 2: Convert to fraction form
    13,111.26/19,666.68 = 4,791.24/x
  3. Step 3: Cross multiply
    13,111.26x = 19,666.68 × 4,791.24
  4. Step 4: Simplify right side
    13,111.26x = 94,227,783.88
  5. Step 5: Solve for x
    x = 94,227,783.88/13,111.26
  6. Step 6: Final answer
    x = 7,186.78

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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.