Home / 11,187.16-16,709.20-10,131.44

Finding the Fourth Proportional to 11,187.16, 16,709.20 and 10,131.44

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Solution

The fourth proportional to 11,187.16, 16,709.20 and 10,131.44 is: 15,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.16 : 16,709.20 = 10,131.44 : x
  2. Step 2: Convert to fraction form
    11,187.16/16,709.20 = 10,131.44/x
  3. Step 3: Cross multiply
    11,187.16x = 16,709.20 × 10,131.44
  4. Step 4: Simplify right side
    11,187.16x = 169,288,257.25
  5. Step 5: Solve for x
    x = 169,288,257.25/11,187.16
  6. Step 6: Final answer
    x = 15,132.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.