Home / 13,465.50-20,198.25-4,231.50

Finding the Fourth Proportional to 13,465.50, 20,198.25 and 4,231.50

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Solution

The fourth proportional to 13,465.50, 20,198.25 and 4,231.50 is: 6,347.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.50 : 20,198.25 = 4,231.50 : x
  2. Step 2: Convert to fraction form
    13,465.50/20,198.25 = 4,231.50/x
  3. Step 3: Cross multiply
    13,465.50x = 20,198.25 × 4,231.50
  4. Step 4: Simplify right side
    13,465.50x = 85,468,894.88
  5. Step 5: Solve for x
    x = 85,468,894.88/13,465.50
  6. Step 6: Final answer
    x = 6,347.25

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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.