Home / 18,677.08-27,979.63-11,659.85

Finding the Fourth Proportional to 18,677.08, 27,979.63 and 11,659.85

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Solution

The fourth proportional to 18,677.08, 27,979.63 and 11,659.85 is: 17,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.08 : 27,979.63 = 11,659.85 : x
  2. Step 2: Convert to fraction form
    18,677.08/27,979.63 = 11,659.85/x
  3. Step 3: Cross multiply
    18,677.08x = 27,979.63 × 11,659.85
  4. Step 4: Simplify right side
    18,677.08x = 326,238,224.73
  5. Step 5: Solve for x
    x = 326,238,224.73/18,677.08
  6. Step 6: Final answer
    x = 17,467.30

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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.