Home / 9,506.78-13,119.12-5,257.73

Finding the Fourth Proportional to 9,506.78, 13,119.12 and 5,257.73

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Solution

The fourth proportional to 9,506.78, 13,119.12 and 5,257.73 is: 7,255.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,506.78 : 13,119.12 = 5,257.73 : x
  2. Step 2: Convert to fraction form
    9,506.78/13,119.12 = 5,257.73/x
  3. Step 3: Cross multiply
    9,506.78x = 13,119.12 × 5,257.73
  4. Step 4: Simplify right side
    9,506.78x = 68,976,725.20
  5. Step 5: Solve for x
    x = 68,976,725.20/9,506.78
  6. Step 6: Final answer
    x = 7,255.53

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Double scale
Find fourth proportional to 9,507.78, 13,120.50 and 5,258.73
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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.