Home / 13,911.87-20,863.40-4,549.73

Finding the Fourth Proportional to 13,911.87, 20,863.40 and 4,549.73

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Solution

The fourth proportional to 13,911.87, 20,863.40 and 4,549.73 is: 6,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.87 : 20,863.40 = 4,549.73 : x
  2. Step 2: Convert to fraction form
    13,911.87/20,863.40 = 4,549.73/x
  3. Step 3: Cross multiply
    13,911.87x = 20,863.40 × 4,549.73
  4. Step 4: Simplify right side
    13,911.87x = 94,922,836.88
  5. Step 5: Solve for x
    x = 94,922,836.88/13,911.87
  6. Step 6: Final answer
    x = 6,823.15

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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.