Home / 16,816.89-25,228.10-5,127.38

Finding the Fourth Proportional to 16,816.89, 25,228.10 and 5,127.38

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Solution

The fourth proportional to 16,816.89, 25,228.10 and 5,127.38 is: 7,691.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,816.89 : 25,228.10 = 5,127.38 : x
  2. Step 2: Convert to fraction form
    16,816.89/25,228.10 = 5,127.38/x
  3. Step 3: Cross multiply
    16,816.89x = 25,228.10 × 5,127.38
  4. Step 4: Simplify right side
    16,816.89x = 129,353,942.06
  5. Step 5: Solve for x
    x = 129,353,942.06/16,816.89
  6. Step 6: Final answer
    x = 7,691.91

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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.