Home / 13,743.28-18,965.20-7,455.52

Finding the Fourth Proportional to 13,743.28, 18,965.20 and 7,455.52

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Solution

The fourth proportional to 13,743.28, 18,965.20 and 7,455.52 is: 10,288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.28 : 18,965.20 = 7,455.52 : x
  2. Step 2: Convert to fraction form
    13,743.28/18,965.20 = 7,455.52/x
  3. Step 3: Cross multiply
    13,743.28x = 18,965.20 × 7,455.52
  4. Step 4: Simplify right side
    13,743.28x = 141,395,427.90
  5. Step 5: Solve for x
    x = 141,395,427.90/13,743.28
  6. Step 6: Final answer
    x = 10,288.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.