Home / 13,255.17-18,292.55-7,286.73

Finding the Fourth Proportional to 13,255.17, 18,292.55 and 7,286.73

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Solution

The fourth proportional to 13,255.17, 18,292.55 and 7,286.73 is: 10,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.17 : 18,292.55 = 7,286.73 : x
  2. Step 2: Convert to fraction form
    13,255.17/18,292.55 = 7,286.73/x
  3. Step 3: Cross multiply
    13,255.17x = 18,292.55 × 7,286.73
  4. Step 4: Simplify right side
    13,255.17x = 133,292,836.43
  5. Step 5: Solve for x
    x = 133,292,836.43/13,255.17
  6. Step 6: Final answer
    x = 10,055.91

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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.