Home / 15,743.87-23,619.45-5,213.48

Finding the Fourth Proportional to 15,743.87, 23,619.45 and 5,213.48

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Solution

The fourth proportional to 15,743.87, 23,619.45 and 5,213.48 is: 7,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.87 : 23,619.45 = 5,213.48 : x
  2. Step 2: Convert to fraction form
    15,743.87/23,619.45 = 5,213.48/x
  3. Step 3: Cross multiply
    15,743.87x = 23,619.45 × 5,213.48
  4. Step 4: Simplify right side
    15,743.87x = 123,139,530.19
  5. Step 5: Solve for x
    x = 123,139,530.19/15,743.87
  6. Step 6: Final answer
    x = 7,821.43

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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.