Home / 19,757.79-27,283.94-12,696.51

Finding the Fourth Proportional to 19,757.79, 27,283.94 and 12,696.51

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Solution

The fourth proportional to 19,757.79, 27,283.94 and 12,696.51 is: 17,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,757.79 : 27,283.94 = 12,696.51 : x
  2. Step 2: Convert to fraction form
    19,757.79/27,283.94 = 12,696.51/x
  3. Step 3: Cross multiply
    19,757.79x = 27,283.94 × 12,696.51
  4. Step 4: Simplify right side
    19,757.79x = 346,410,903.49
  5. Step 5: Solve for x
    x = 346,410,903.49/19,757.79
  6. Step 6: Final answer
    x = 17,532.88

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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.