Home / 13,425.59-20,138.46-4,540.98

Finding the Fourth Proportional to 13,425.59, 20,138.46 and 4,540.98

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Solution

The fourth proportional to 13,425.59, 20,138.46 and 4,540.98 is: 6,811.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.59 : 20,138.46 = 4,540.98 : x
  2. Step 2: Convert to fraction form
    13,425.59/20,138.46 = 4,540.98/x
  3. Step 3: Cross multiply
    13,425.59x = 20,138.46 × 4,540.98
  4. Step 4: Simplify right side
    13,425.59x = 91,448,344.09
  5. Step 5: Solve for x
    x = 91,448,344.09/13,425.59
  6. Step 6: Final answer
    x = 6,811.50

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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.