Home / 13,140.48-19,716.87-5,743.98

Finding the Fourth Proportional to 13,140.48, 19,716.87 and 5,743.98

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Solution

The fourth proportional to 13,140.48, 19,716.87 and 5,743.98 is: 8,618.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.48 : 19,716.87 = 5,743.98 : x
  2. Step 2: Convert to fraction form
    13,140.48/19,716.87 = 5,743.98/x
  3. Step 3: Cross multiply
    13,140.48x = 19,716.87 × 5,743.98
  4. Step 4: Simplify right side
    13,140.48x = 113,253,296.17
  5. Step 5: Solve for x
    x = 113,253,296.17/13,140.48
  6. Step 6: Final answer
    x = 8,618.66

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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.