Home / 13,268.71-19,902.93-4,509.78

Finding the Fourth Proportional to 13,268.71, 19,902.93 and 4,509.78

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Solution

The fourth proportional to 13,268.71, 19,902.93 and 4,509.78 is: 6,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.71 : 19,902.93 = 4,509.78 : x
  2. Step 2: Convert to fraction form
    13,268.71/19,902.93 = 4,509.78/x
  3. Step 3: Cross multiply
    13,268.71x = 19,902.93 × 4,509.78
  4. Step 4: Simplify right side
    13,268.71x = 89,757,835.66
  5. Step 5: Solve for x
    x = 89,757,835.66/13,268.71
  6. Step 6: Final answer
    x = 6,764.62

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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.