Home / 13,178.10-19,761.39-3,941.94

Finding the Fourth Proportional to 13,178.10, 19,761.39 and 3,941.94

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Solution

The fourth proportional to 13,178.10, 19,761.39 and 3,941.94 is: 5,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.10 : 19,761.39 = 3,941.94 : x
  2. Step 2: Convert to fraction form
    13,178.10/19,761.39 = 3,941.94/x
  3. Step 3: Cross multiply
    13,178.10x = 19,761.39 × 3,941.94
  4. Step 4: Simplify right side
    13,178.10x = 77,898,213.70
  5. Step 5: Solve for x
    x = 77,898,213.70/13,178.10
  6. Step 6: Final answer
    x = 5,911.19

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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.