Home / 13,280.73-19,918.01-3,921.39

Finding the Fourth Proportional to 13,280.73, 19,918.01 and 3,921.39

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Solution

The fourth proportional to 13,280.73, 19,918.01 and 3,921.39 is: 5,881.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.73 : 19,918.01 = 3,921.39 : x
  2. Step 2: Convert to fraction form
    13,280.73/19,918.01 = 3,921.39/x
  3. Step 3: Cross multiply
    13,280.73x = 19,918.01 × 3,921.39
  4. Step 4: Simplify right side
    13,280.73x = 78,106,285.23
  5. Step 5: Solve for x
    x = 78,106,285.23/13,280.73
  6. Step 6: Final answer
    x = 5,881.17

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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.