Home / 11,123.14-15,348.41-6,645.94

Finding the Fourth Proportional to 11,123.14, 15,348.41 and 6,645.94

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Solution

The fourth proportional to 11,123.14, 15,348.41 and 6,645.94 is: 9,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.14 : 15,348.41 = 6,645.94 : x
  2. Step 2: Convert to fraction form
    11,123.14/15,348.41 = 6,645.94/x
  3. Step 3: Cross multiply
    11,123.14x = 15,348.41 × 6,645.94
  4. Step 4: Simplify right side
    11,123.14x = 102,004,611.96
  5. Step 5: Solve for x
    x = 102,004,611.96/11,123.14
  6. Step 6: Final answer
    x = 9,170.49

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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.