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Finding the Fourth Proportional to 14,323.69, 21,480.41 and 4,961.20

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Solution

The fourth proportional to 14,323.69, 21,480.41 and 4,961.20 is: 7,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,323.69 : 21,480.41 = 4,961.20 : x
  2. Step 2: Convert to fraction form
    14,323.69/21,480.41 = 4,961.20/x
  3. Step 3: Cross multiply
    14,323.69x = 21,480.41 × 4,961.20
  4. Step 4: Simplify right side
    14,323.69x = 106,568,610.09
  5. Step 5: Solve for x
    x = 106,568,610.09/14,323.69
  6. Step 6: Final answer
    x = 7,440.02

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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.