Home / 14,112.99-21,161.91-4,749.89

Finding the Fourth Proportional to 14,112.99, 21,161.91 and 4,749.89

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Solution

The fourth proportional to 14,112.99, 21,161.91 and 4,749.89 is: 7,122.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.99 : 21,161.91 = 4,749.89 : x
  2. Step 2: Convert to fraction form
    14,112.99/21,161.91 = 4,749.89/x
  3. Step 3: Cross multiply
    14,112.99x = 21,161.91 × 4,749.89
  4. Step 4: Simplify right side
    14,112.99x = 100,516,638.88
  5. Step 5: Solve for x
    x = 100,516,638.88/14,112.99
  6. Step 6: Final answer
    x = 7,122.28

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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.