Home / 13,237.76-19,857.75-3,877.40

Finding the Fourth Proportional to 13,237.76, 19,857.75 and 3,877.40

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Solution

The fourth proportional to 13,237.76, 19,857.75 and 3,877.40 is: 5,816.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.76 : 19,857.75 = 3,877.40 : x
  2. Step 2: Convert to fraction form
    13,237.76/19,857.75 = 3,877.40/x
  3. Step 3: Cross multiply
    13,237.76x = 19,857.75 × 3,877.40
  4. Step 4: Simplify right side
    13,237.76x = 76,996,439.85
  5. Step 5: Solve for x
    x = 76,996,439.85/13,237.76
  6. Step 6: Final answer
    x = 5,816.43

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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.