Home / 13,735.07-18,951.92-7,685.43

Finding the Fourth Proportional to 13,735.07, 18,951.92 and 7,685.43

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Solution

The fourth proportional to 13,735.07, 18,951.92 and 7,685.43 is: 10,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,735.07 : 18,951.92 = 7,685.43 : x
  2. Step 2: Convert to fraction form
    13,735.07/18,951.92 = 7,685.43/x
  3. Step 3: Cross multiply
    13,735.07x = 18,951.92 × 7,685.43
  4. Step 4: Simplify right side
    13,735.07x = 145,653,723.68
  5. Step 5: Solve for x
    x = 145,653,723.68/13,735.07
  6. Step 6: Final answer
    x = 10,604.51

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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.