Home / 18,201.29-25,109.38-13,157.51

Finding the Fourth Proportional to 18,201.29, 25,109.38 and 13,157.51

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Solution

The fourth proportional to 18,201.29, 25,109.38 and 13,157.51 is: 18,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.29 : 25,109.38 = 13,157.51 : x
  2. Step 2: Convert to fraction form
    18,201.29/25,109.38 = 13,157.51/x
  3. Step 3: Cross multiply
    18,201.29x = 25,109.38 × 13,157.51
  4. Step 4: Simplify right side
    18,201.29x = 330,376,918.44
  5. Step 5: Solve for x
    x = 330,376,918.44/18,201.29
  6. Step 6: Final answer
    x = 18,151.29

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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.