Home / 11,501.06-15,850.41-8,351.78

Finding the Fourth Proportional to 11,501.06, 15,850.41 and 8,351.78

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Solution

The fourth proportional to 11,501.06, 15,850.41 and 8,351.78 is: 11,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,501.06 : 15,850.41 = 8,351.78 : x
  2. Step 2: Convert to fraction form
    11,501.06/15,850.41 = 8,351.78/x
  3. Step 3: Cross multiply
    11,501.06x = 15,850.41 × 8,351.78
  4. Step 4: Simplify right side
    11,501.06x = 132,379,137.23
  5. Step 5: Solve for x
    x = 132,379,137.23/11,501.06
  6. Step 6: Final answer
    x = 11,510.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.