Home / 16,815.27-25,226.64-5,129.40

Finding the Fourth Proportional to 16,815.27, 25,226.64 and 5,129.40

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Solution

The fourth proportional to 16,815.27, 25,226.64 and 5,129.40 is: 7,695.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.27 : 25,226.64 = 5,129.40 : x
  2. Step 2: Convert to fraction form
    16,815.27/25,226.64 = 5,129.40/x
  3. Step 3: Cross multiply
    16,815.27x = 25,226.64 × 5,129.40
  4. Step 4: Simplify right side
    16,815.27x = 129,397,527.22
  5. Step 5: Solve for x
    x = 129,397,527.22/16,815.27
  6. Step 6: Final answer
    x = 7,695.24

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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.