Home / 12,511.44-17,258.34-7,794.81

Finding the Fourth Proportional to 12,511.44, 17,258.34 and 7,794.81

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Solution

The fourth proportional to 12,511.44, 17,258.34 and 7,794.81 is: 10,752.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.44 : 17,258.34 = 7,794.81 : x
  2. Step 2: Convert to fraction form
    12,511.44/17,258.34 = 7,794.81/x
  3. Step 3: Cross multiply
    12,511.44x = 17,258.34 × 7,794.81
  4. Step 4: Simplify right side
    12,511.44x = 134,525,481.22
  5. Step 5: Solve for x
    x = 134,525,481.22/12,511.44
  6. Step 6: Final answer
    x = 10,752.20

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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.