Home / 18,646.36-27,979.26-7,561.24

Finding the Fourth Proportional to 18,646.36, 27,979.26 and 7,561.24

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Solution

The fourth proportional to 18,646.36, 27,979.26 and 7,561.24 is: 11,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.36 : 27,979.26 = 7,561.24 : x
  2. Step 2: Convert to fraction form
    18,646.36/27,979.26 = 7,561.24/x
  3. Step 3: Cross multiply
    18,646.36x = 27,979.26 × 7,561.24
  4. Step 4: Simplify right side
    18,646.36x = 211,557,899.88
  5. Step 5: Solve for x
    x = 211,557,899.88/18,646.36
  6. Step 6: Final answer
    x = 11,345.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.