Home / 12,922.19-19,383.36-5,131

Finding the Fourth Proportional to 12,922.19, 19,383.36 and 5,131

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Solution

The fourth proportional to 12,922.19, 19,383.36 and 5,131 is: 7,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.19 : 19,383.36 = 5,131 : x
  2. Step 2: Convert to fraction form
    12,922.19/19,383.36 = 5,131/x
  3. Step 3: Cross multiply
    12,922.19x = 19,383.36 × 5,131
  4. Step 4: Simplify right side
    12,922.19x = 99,456,020.16
  5. Step 5: Solve for x
    x = 99,456,020.16/12,922.19
  6. Step 6: Final answer
    x = 7,696.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.