Home / 18,979.72-26,194.26-10,916.44

Finding the Fourth Proportional to 18,979.72, 26,194.26 and 10,916.44

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Solution

The fourth proportional to 18,979.72, 26,194.26 and 10,916.44 is: 15,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,979.72 : 26,194.26 = 10,916.44 : x
  2. Step 2: Convert to fraction form
    18,979.72/26,194.26 = 10,916.44/x
  3. Step 3: Cross multiply
    18,979.72x = 26,194.26 × 10,916.44
  4. Step 4: Simplify right side
    18,979.72x = 285,948,067.63
  5. Step 5: Solve for x
    x = 285,948,067.63/18,979.72
  6. Step 6: Final answer
    x = 15,065.98

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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.