Home / 13,100.13-19,658.70-5,709.29

Finding the Fourth Proportional to 13,100.13, 19,658.70 and 5,709.29

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Solution

The fourth proportional to 13,100.13, 19,658.70 and 5,709.29 is: 8,567.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,100.13 : 19,658.70 = 5,709.29 : x
  2. Step 2: Convert to fraction form
    13,100.13/19,658.70 = 5,709.29/x
  3. Step 3: Cross multiply
    13,100.13x = 19,658.70 × 5,709.29
  4. Step 4: Simplify right side
    13,100.13x = 112,237,121.03
  5. Step 5: Solve for x
    x = 112,237,121.03/13,100.13
  6. Step 6: Final answer
    x = 8,567.63

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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.