Home / 19,618.36-27,081.18-12,067.75

Finding the Fourth Proportional to 19,618.36, 27,081.18 and 12,067.75

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Solution

The fourth proportional to 19,618.36, 27,081.18 and 12,067.75 is: 16,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.36 : 27,081.18 = 12,067.75 : x
  2. Step 2: Convert to fraction form
    19,618.36/27,081.18 = 12,067.75/x
  3. Step 3: Cross multiply
    19,618.36x = 27,081.18 × 12,067.75
  4. Step 4: Simplify right side
    19,618.36x = 326,808,909.95
  5. Step 5: Solve for x
    x = 326,808,909.95/19,618.36
  6. Step 6: Final answer
    x = 16,658.32

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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.