Home / 13,266.12-19,902.63-3,905.83

Finding the Fourth Proportional to 13,266.12, 19,902.63 and 3,905.83

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Solution

The fourth proportional to 13,266.12, 19,902.63 and 3,905.83 is: 5,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.12 : 19,902.63 = 3,905.83 : x
  2. Step 2: Convert to fraction form
    13,266.12/19,902.63 = 3,905.83/x
  3. Step 3: Cross multiply
    13,266.12x = 19,902.63 × 3,905.83
  4. Step 4: Simplify right side
    13,266.12x = 77,736,293.09
  5. Step 5: Solve for x
    x = 77,736,293.09/13,266.12
  6. Step 6: Final answer
    x = 5,859.76

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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.