Home / 19,640.68-27,104.90-11,258.76

Finding the Fourth Proportional to 19,640.68, 27,104.90 and 11,258.76

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Solution

The fourth proportional to 19,640.68, 27,104.90 and 11,258.76 is: 15,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.68 : 27,104.90 = 11,258.76 : x
  2. Step 2: Convert to fraction form
    19,640.68/27,104.90 = 11,258.76/x
  3. Step 3: Cross multiply
    19,640.68x = 27,104.90 × 11,258.76
  4. Step 4: Simplify right side
    19,640.68x = 305,167,563.92
  5. Step 5: Solve for x
    x = 305,167,563.92/19,640.68
  6. Step 6: Final answer
    x = 15,537.53

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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.