Home / 11,813.49-17,720.87-4,792.45

Finding the Fourth Proportional to 11,813.49, 17,720.87 and 4,792.45

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Solution

The fourth proportional to 11,813.49, 17,720.87 and 4,792.45 is: 7,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.49 : 17,720.87 = 4,792.45 : x
  2. Step 2: Convert to fraction form
    11,813.49/17,720.87 = 4,792.45/x
  3. Step 3: Cross multiply
    11,813.49x = 17,720.87 × 4,792.45
  4. Step 4: Simplify right side
    11,813.49x = 84,926,383.43
  5. Step 5: Solve for x
    x = 84,926,383.43/11,813.49
  6. Step 6: Final answer
    x = 7,188.93

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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.