Home / 13,255.35-18,291.57-7,286.85

Finding the Fourth Proportional to 13,255.35, 18,291.57 and 7,286.85

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Solution

The fourth proportional to 13,255.35, 18,291.57 and 7,286.85 is: 10,055.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.35 : 18,291.57 = 7,286.85 : x
  2. Step 2: Convert to fraction form
    13,255.35/18,291.57 = 7,286.85/x
  3. Step 3: Cross multiply
    13,255.35x = 18,291.57 × 7,286.85
  4. Step 4: Simplify right side
    13,255.35x = 133,287,926.85
  5. Step 5: Solve for x
    x = 133,287,926.85/13,255.35
  6. Step 6: Final answer
    x = 10,055.41

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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.