Home / 12,944.36-17,862.18-7,908.20

Finding the Fourth Proportional to 12,944.36, 17,862.18 and 7,908.20

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Solution

The fourth proportional to 12,944.36, 17,862.18 and 7,908.20 is: 10,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.36 : 17,862.18 = 7,908.20 : x
  2. Step 2: Convert to fraction form
    12,944.36/17,862.18 = 7,908.20/x
  3. Step 3: Cross multiply
    12,944.36x = 17,862.18 × 7,908.20
  4. Step 4: Simplify right side
    12,944.36x = 141,257,691.88
  5. Step 5: Solve for x
    x = 141,257,691.88/12,944.36
  6. Step 6: Final answer
    x = 10,912.68

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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.