Home / 18,645.91-27,979.12-8,784.93

Finding the Fourth Proportional to 18,645.91, 27,979.12 and 8,784.93

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Solution

The fourth proportional to 18,645.91, 27,979.12 and 8,784.93 is: 13,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.91 : 27,979.12 = 8,784.93 : x
  2. Step 2: Convert to fraction form
    18,645.91/27,979.12 = 8,784.93/x
  3. Step 3: Cross multiply
    18,645.91x = 27,979.12 × 8,784.93
  4. Step 4: Simplify right side
    18,645.91x = 245,794,610.66
  5. Step 5: Solve for x
    x = 245,794,610.66/18,645.91
  6. Step 6: Final answer
    x = 13,182.23

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1.5x scale

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.