Home / 13,021.47-19,539.31-5,523.87

Finding the Fourth Proportional to 13,021.47, 19,539.31 and 5,523.87

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Solution

The fourth proportional to 13,021.47, 19,539.31 and 5,523.87 is: 8,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.47 : 19,539.31 = 5,523.87 : x
  2. Step 2: Convert to fraction form
    13,021.47/19,539.31 = 5,523.87/x
  3. Step 3: Cross multiply
    13,021.47x = 19,539.31 × 5,523.87
  4. Step 4: Simplify right side
    13,021.47x = 107,932,583.78
  5. Step 5: Solve for x
    x = 107,932,583.78/13,021.47
  6. Step 6: Final answer
    x = 8,288.82

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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.