Home / 19,082.79-26,343.36-12,719.97

Finding the Fourth Proportional to 19,082.79, 26,343.36 and 12,719.97

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Solution

The fourth proportional to 19,082.79, 26,343.36 and 12,719.97 is: 17,559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,082.79 : 26,343.36 = 12,719.97 : x
  2. Step 2: Convert to fraction form
    19,082.79/26,343.36 = 12,719.97/x
  3. Step 3: Cross multiply
    19,082.79x = 26,343.36 × 12,719.97
  4. Step 4: Simplify right side
    19,082.79x = 335,086,748.90
  5. Step 5: Solve for x
    x = 335,086,748.90/19,082.79
  6. Step 6: Final answer
    x = 17,559.63

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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.