Home / 11,147.41-16,718.37-5,228.38

Finding the Fourth Proportional to 11,147.41, 16,718.37 and 5,228.38

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Solution

The fourth proportional to 11,147.41, 16,718.37 and 5,228.38 is: 7,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.41 : 16,718.37 = 5,228.38 : x
  2. Step 2: Convert to fraction form
    11,147.41/16,718.37 = 5,228.38/x
  3. Step 3: Cross multiply
    11,147.41x = 16,718.37 × 5,228.38
  4. Step 4: Simplify right side
    11,147.41x = 87,409,991.34
  5. Step 5: Solve for x
    x = 87,409,991.34/11,147.41
  6. Step 6: Final answer
    x = 7,841.28

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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.