Home / 13,785.11-19,027.36-8,123.14

Finding the Fourth Proportional to 13,785.11, 19,027.36 and 8,123.14

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Solution

The fourth proportional to 13,785.11, 19,027.36 and 8,123.14 is: 11,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.11 : 19,027.36 = 8,123.14 : x
  2. Step 2: Convert to fraction form
    13,785.11/19,027.36 = 8,123.14/x
  3. Step 3: Cross multiply
    13,785.11x = 19,027.36 × 8,123.14
  4. Step 4: Simplify right side
    13,785.11x = 154,561,790.33
  5. Step 5: Solve for x
    x = 154,561,790.33/13,785.11
  6. Step 6: Final answer
    x = 11,212.23

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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.