Home / 10,105.87-15,144.76-8,786.92

Finding the Fourth Proportional to 10,105.87, 15,144.76 and 8,786.92

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Solution

The fourth proportional to 10,105.87, 15,144.76 and 8,786.92 is: 13,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,105.87 : 15,144.76 = 8,786.92 : x
  2. Step 2: Convert to fraction form
    10,105.87/15,144.76 = 8,786.92/x
  3. Step 3: Cross multiply
    10,105.87x = 15,144.76 × 8,786.92
  4. Step 4: Simplify right side
    10,105.87x = 133,075,794.54
  5. Step 5: Solve for x
    x = 133,075,794.54/10,105.87
  6. Step 6: Final answer
    x = 13,168.17

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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.