Home / 18,719.22-25,837.68-11,641.44

Finding the Fourth Proportional to 18,719.22, 25,837.68 and 11,641.44

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Solution

The fourth proportional to 18,719.22, 25,837.68 and 11,641.44 is: 16,068.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.22 : 25,837.68 = 11,641.44 : x
  2. Step 2: Convert to fraction form
    18,719.22/25,837.68 = 11,641.44/x
  3. Step 3: Cross multiply
    18,719.22x = 25,837.68 × 11,641.44
  4. Step 4: Simplify right side
    18,719.22x = 300,787,801.46
  5. Step 5: Solve for x
    x = 300,787,801.46/18,719.22
  6. Step 6: Final answer
    x = 16,068.39

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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.