Home / 13,938.99-20,911.77-4,579.03

Finding the Fourth Proportional to 13,938.99, 20,911.77 and 4,579.03

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Solution

The fourth proportional to 13,938.99, 20,911.77 and 4,579.03 is: 6,869.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.99 : 20,911.77 = 4,579.03 : x
  2. Step 2: Convert to fraction form
    13,938.99/20,911.77 = 4,579.03/x
  3. Step 3: Cross multiply
    13,938.99x = 20,911.77 × 4,579.03
  4. Step 4: Simplify right side
    13,938.99x = 95,755,648.32
  5. Step 5: Solve for x
    x = 95,755,648.32/13,938.99
  6. Step 6: Final answer
    x = 6,869.63

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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.