Home / 14,112.48-21,161.16-4,749.39

Finding the Fourth Proportional to 14,112.48, 21,161.16 and 4,749.39

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Solution

The fourth proportional to 14,112.48, 21,161.16 and 4,749.39 is: 7,121.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.48 : 21,161.16 = 4,749.39 : x
  2. Step 2: Convert to fraction form
    14,112.48/21,161.16 = 4,749.39/x
  3. Step 3: Cross multiply
    14,112.48x = 21,161.16 × 4,749.39
  4. Step 4: Simplify right side
    14,112.48x = 100,502,601.69
  5. Step 5: Solve for x
    x = 100,502,601.69/14,112.48
  6. Step 6: Final answer
    x = 7,121.54

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1.5x scale

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.