Home / 13,280.70-19,911.81-5,881.14

Finding the Fourth Proportional to 13,280.70, 19,911.81 and 5,881.14

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Solution

The fourth proportional to 13,280.70, 19,911.81 and 5,881.14 is: 8,817.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.70 : 19,911.81 = 5,881.14 : x
  2. Step 2: Convert to fraction form
    13,280.70/19,911.81 = 5,881.14/x
  3. Step 3: Cross multiply
    13,280.70x = 19,911.81 × 5,881.14
  4. Step 4: Simplify right side
    13,280.70x = 117,104,142.26
  5. Step 5: Solve for x
    x = 117,104,142.26/13,280.70
  6. Step 6: Final answer
    x = 8,817.62

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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.