Home / 13,091.51-18,113.81-11,416.39

Finding the Fourth Proportional to 13,091.51, 18,113.81 and 11,416.39

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Solution

The fourth proportional to 13,091.51, 18,113.81 and 11,416.39 is: 15,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.51 : 18,113.81 = 11,416.39 : x
  2. Step 2: Convert to fraction form
    13,091.51/18,113.81 = 11,416.39/x
  3. Step 3: Cross multiply
    13,091.51x = 18,113.81 × 11,416.39
  4. Step 4: Simplify right side
    13,091.51x = 206,794,216.98
  5. Step 5: Solve for x
    x = 206,794,216.98/13,091.51
  6. Step 6: Final answer
    x = 15,796.05

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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.