Home / 17,139-23,631.66-11,540.28

Finding the Fourth Proportional to 17,139, 23,631.66 and 11,540.28

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Solution

The fourth proportional to 17,139, 23,631.66 and 11,540.28 is: 15,912.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,139 : 23,631.66 = 11,540.28 : x
  2. Step 2: Convert to fraction form
    17,139/23,631.66 = 11,540.28/x
  3. Step 3: Cross multiply
    17,139x = 23,631.66 × 11,540.28
  4. Step 4: Simplify right side
    17,139x = 272,715,973.26
  5. Step 5: Solve for x
    x = 272,715,973.26/17,139
  6. Step 6: Final answer
    x = 15,912.01

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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.