Home / 13,743.14-18,965.54-7,455.51

Finding the Fourth Proportional to 13,743.14, 18,965.54 and 7,455.51

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Solution

The fourth proportional to 13,743.14, 18,965.54 and 7,455.51 is: 10,288.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.14 : 18,965.54 = 7,455.51 : x
  2. Step 2: Convert to fraction form
    13,743.14/18,965.54 = 7,455.51/x
  3. Step 3: Cross multiply
    13,743.14x = 18,965.54 × 7,455.51
  4. Step 4: Simplify right side
    13,743.14x = 141,397,791.76
  5. Step 5: Solve for x
    x = 141,397,791.76/13,743.14
  6. Step 6: Final answer
    x = 10,288.61

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1.5x scale

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.