Home / 16,815.45-25,222.26-5,127.75

Finding the Fourth Proportional to 16,815.45, 25,222.26 and 5,127.75

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Solution

The fourth proportional to 16,815.45, 25,222.26 and 5,127.75 is: 7,691.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.45 : 25,222.26 = 5,127.75 : x
  2. Step 2: Convert to fraction form
    16,815.45/25,222.26 = 5,127.75/x
  3. Step 3: Cross multiply
    16,815.45x = 25,222.26 × 5,127.75
  4. Step 4: Simplify right side
    16,815.45x = 129,333,443.72
  5. Step 5: Solve for x
    x = 129,333,443.72/16,815.45
  6. Step 6: Final answer
    x = 7,691.35

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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.