Home / 18,719.33-25,801.91-13,270.25

Finding the Fourth Proportional to 18,719.33, 25,801.91 and 13,270.25

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Solution

The fourth proportional to 18,719.33, 25,801.91 and 13,270.25 is: 18,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.33 : 25,801.91 = 13,270.25 : x
  2. Step 2: Convert to fraction form
    18,719.33/25,801.91 = 13,270.25/x
  3. Step 3: Cross multiply
    18,719.33x = 25,801.91 × 13,270.25
  4. Step 4: Simplify right side
    18,719.33x = 342,397,844.09
  5. Step 5: Solve for x
    x = 342,397,844.09/18,719.33
  6. Step 6: Final answer
    x = 18,291.14

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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.