Home / 13,093.76-18,116.91-11,418.64

Finding the Fourth Proportional to 13,093.76, 18,116.91 and 11,418.64

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Solution

The fourth proportional to 13,093.76, 18,116.91 and 11,418.64 is: 15,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.76 : 18,116.91 = 11,418.64 : x
  2. Step 2: Convert to fraction form
    13,093.76/18,116.91 = 11,418.64/x
  3. Step 3: Cross multiply
    13,093.76x = 18,116.91 × 11,418.64
  4. Step 4: Simplify right side
    13,093.76x = 206,870,427.91
  5. Step 5: Solve for x
    x = 206,870,427.91/13,093.76
  6. Step 6: Final answer
    x = 15,799.16

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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.