Home / 15,808.96-23,716.32-5,418.40

Finding the Fourth Proportional to 15,808.96, 23,716.32 and 5,418.40

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Solution

The fourth proportional to 15,808.96, 23,716.32 and 5,418.40 is: 8,128.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808.96 : 23,716.32 = 5,418.40 : x
  2. Step 2: Convert to fraction form
    15,808.96/23,716.32 = 5,418.40/x
  3. Step 3: Cross multiply
    15,808.96x = 23,716.32 × 5,418.40
  4. Step 4: Simplify right side
    15,808.96x = 128,504,508.29
  5. Step 5: Solve for x
    x = 128,504,508.29/15,808.96
  6. Step 6: Final answer
    x = 8,128.59

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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.