Home / 10,072.80-15,103.17-4,145.09

Finding the Fourth Proportional to 10,072.80, 15,103.17 and 4,145.09

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Solution

The fourth proportional to 10,072.80, 15,103.17 and 4,145.09 is: 6,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,072.80 : 15,103.17 = 4,145.09 : x
  2. Step 2: Convert to fraction form
    10,072.80/15,103.17 = 4,145.09/x
  3. Step 3: Cross multiply
    10,072.80x = 15,103.17 × 4,145.09
  4. Step 4: Simplify right side
    10,072.80x = 62,603,923.42
  5. Step 5: Solve for x
    x = 62,603,923.42/10,072.80
  6. Step 6: Final answer
    x = 6,215.15

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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.