Home / 12,944.28-17,862.09-7,910.94

Finding the Fourth Proportional to 12,944.28, 17,862.09 and 7,910.94

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Solution

The fourth proportional to 12,944.28, 17,862.09 and 7,910.94 is: 10,916.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.28 : 17,862.09 = 7,910.94 : x
  2. Step 2: Convert to fraction form
    12,944.28/17,862.09 = 7,910.94/x
  3. Step 3: Cross multiply
    12,944.28x = 17,862.09 × 7,910.94
  4. Step 4: Simplify right side
    12,944.28x = 141,305,922.26
  5. Step 5: Solve for x
    x = 141,305,922.26/12,944.28
  6. Step 6: Final answer
    x = 10,916.48

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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.