Home / 13,140.26-19,716.54-5,743.76

Finding the Fourth Proportional to 13,140.26, 19,716.54 and 5,743.76

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Solution

The fourth proportional to 13,140.26, 19,716.54 and 5,743.76 is: 8,618.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.26 : 19,716.54 = 5,743.76 : x
  2. Step 2: Convert to fraction form
    13,140.26/19,716.54 = 5,743.76/x
  3. Step 3: Cross multiply
    13,140.26x = 19,716.54 × 5,743.76
  4. Step 4: Simplify right side
    13,140.26x = 113,246,946.49
  5. Step 5: Solve for x
    x = 113,246,946.49/13,140.26
  6. Step 6: Final answer
    x = 8,618.32

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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.