Home / 19,814.39-29,731.25-8,719.68

Finding the Fourth Proportional to 19,814.39, 29,731.25 and 8,719.68

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Solution

The fourth proportional to 19,814.39, 29,731.25 and 8,719.68 is: 13,083.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.39 : 29,731.25 = 8,719.68 : x
  2. Step 2: Convert to fraction form
    19,814.39/29,731.25 = 8,719.68/x
  3. Step 3: Cross multiply
    19,814.39x = 29,731.25 × 8,719.68
  4. Step 4: Simplify right side
    19,814.39x = 259,246,986
  5. Step 5: Solve for x
    x = 259,246,986/19,814.39
  6. Step 6: Final answer
    x = 13,083.77

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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.