Home / 13,634.18-20,454.86-4,274.50

Finding the Fourth Proportional to 13,634.18, 20,454.86 and 4,274.50

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Solution

The fourth proportional to 13,634.18, 20,454.86 and 4,274.50 is: 6,412.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.18 : 20,454.86 = 4,274.50 : x
  2. Step 2: Convert to fraction form
    13,634.18/20,454.86 = 4,274.50/x
  3. Step 3: Cross multiply
    13,634.18x = 20,454.86 × 4,274.50
  4. Step 4: Simplify right side
    13,634.18x = 87,434,299.07
  5. Step 5: Solve for x
    x = 87,434,299.07/13,634.18
  6. Step 6: Final answer
    x = 6,412.88

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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.