Home / 13,126.36-19,686.85-3,763.87

Finding the Fourth Proportional to 13,126.36, 19,686.85 and 3,763.87

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Solution

The fourth proportional to 13,126.36, 19,686.85 and 3,763.87 is: 5,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.36 : 19,686.85 = 3,763.87 : x
  2. Step 2: Convert to fraction form
    13,126.36/19,686.85 = 3,763.87/x
  3. Step 3: Cross multiply
    13,126.36x = 19,686.85 × 3,763.87
  4. Step 4: Simplify right side
    13,126.36x = 74,098,744.11
  5. Step 5: Solve for x
    x = 74,098,744.11/13,126.36
  6. Step 6: Final answer
    x = 5,645.03

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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.