Home / 13,162.74-19,749.51-5,372.34

Finding the Fourth Proportional to 13,162.74, 19,749.51 and 5,372.34

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Solution

The fourth proportional to 13,162.74, 19,749.51 and 5,372.34 is: 8,060.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.74 : 19,749.51 = 5,372.34 : x
  2. Step 2: Convert to fraction form
    13,162.74/19,749.51 = 5,372.34/x
  3. Step 3: Cross multiply
    13,162.74x = 19,749.51 × 5,372.34
  4. Step 4: Simplify right side
    13,162.74x = 106,101,082.55
  5. Step 5: Solve for x
    x = 106,101,082.55/13,162.74
  6. Step 6: Final answer
    x = 8,060.71

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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.