Home / 13,174.84-19,749.18-5,389.24

Finding the Fourth Proportional to 13,174.84, 19,749.18 and 5,389.24

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Solution

The fourth proportional to 13,174.84, 19,749.18 and 5,389.24 is: 8,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.84 : 19,749.18 = 5,389.24 : x
  2. Step 2: Convert to fraction form
    13,174.84/19,749.18 = 5,389.24/x
  3. Step 3: Cross multiply
    13,174.84x = 19,749.18 × 5,389.24
  4. Step 4: Simplify right side
    13,174.84x = 106,433,070.82
  5. Step 5: Solve for x
    x = 106,433,070.82/13,174.84
  6. Step 6: Final answer
    x = 8,078.51

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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.