Home / 13,472.87-20,212.32-4,113.72

Finding the Fourth Proportional to 13,472.87, 20,212.32 and 4,113.72

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Solution

The fourth proportional to 13,472.87, 20,212.32 and 4,113.72 is: 6,171.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.87 : 20,212.32 = 4,113.72 : x
  2. Step 2: Convert to fraction form
    13,472.87/20,212.32 = 4,113.72/x
  3. Step 3: Cross multiply
    13,472.87x = 20,212.32 × 4,113.72
  4. Step 4: Simplify right side
    13,472.87x = 83,147,825.03
  5. Step 5: Solve for x
    x = 83,147,825.03/13,472.87
  6. Step 6: Final answer
    x = 6,171.50

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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.