Home / 11,975.20-17,970.99-4,184.02

Finding the Fourth Proportional to 11,975.20, 17,970.99 and 4,184.02

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Solution

The fourth proportional to 11,975.20, 17,970.99 and 4,184.02 is: 6,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.20 : 17,970.99 = 4,184.02 : x
  2. Step 2: Convert to fraction form
    11,975.20/17,970.99 = 4,184.02/x
  3. Step 3: Cross multiply
    11,975.20x = 17,970.99 × 4,184.02
  4. Step 4: Simplify right side
    11,975.20x = 75,190,981.58
  5. Step 5: Solve for x
    x = 75,190,981.58/11,975.20
  6. Step 6: Final answer
    x = 6,278.89

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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.