Home / 14,821.20-22,204.80-11,721.60

Finding the Fourth Proportional to 14,821.20, 22,204.80 and 11,721.60

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Solution

The fourth proportional to 14,821.20, 22,204.80 and 11,721.60 is: 17,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,821.20 : 22,204.80 = 11,721.60 : x
  2. Step 2: Convert to fraction form
    14,821.20/22,204.80 = 11,721.60/x
  3. Step 3: Cross multiply
    14,821.20x = 22,204.80 × 11,721.60
  4. Step 4: Simplify right side
    14,821.20x = 260,275,783.68
  5. Step 5: Solve for x
    x = 260,275,783.68/14,821.20
  6. Step 6: Final answer
    x = 17,561.05

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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.