Home / 14,080.81-21,100.20-12,836.02

Finding the Fourth Proportional to 14,080.81, 21,100.20 and 12,836.02

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Solution

The fourth proportional to 14,080.81, 21,100.20 and 12,836.02 is: 19,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.81 : 21,100.20 = 12,836.02 : x
  2. Step 2: Convert to fraction form
    14,080.81/21,100.20 = 12,836.02/x
  3. Step 3: Cross multiply
    14,080.81x = 21,100.20 × 12,836.02
  4. Step 4: Simplify right side
    14,080.81x = 270,842,589.20
  5. Step 5: Solve for x
    x = 270,842,589.20/14,080.81
  6. Step 6: Final answer
    x = 19,234.87

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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.