Home / 10,012.50-15,019.97-3,087

Finding the Fourth Proportional to 10,012.50, 15,019.97 and 3,087

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Solution

The fourth proportional to 10,012.50, 15,019.97 and 3,087 is: 4,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.50 : 15,019.97 = 3,087 : x
  2. Step 2: Convert to fraction form
    10,012.50/15,019.97 = 3,087/x
  3. Step 3: Cross multiply
    10,012.50x = 15,019.97 × 3,087
  4. Step 4: Simplify right side
    10,012.50x = 46,366,631.96
  5. Step 5: Solve for x
    x = 46,366,631.96/10,012.50
  6. Step 6: Final answer
    x = 4,630.87

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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.