Home / 13,900.30-20,853.74-4,540.32

Finding the Fourth Proportional to 13,900.30, 20,853.74 and 4,540.32

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Solution

The fourth proportional to 13,900.30, 20,853.74 and 4,540.32 is: 6,811.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.30 : 20,853.74 = 4,540.32 : x
  2. Step 2: Convert to fraction form
    13,900.30/20,853.74 = 4,540.32/x
  3. Step 3: Cross multiply
    13,900.30x = 20,853.74 × 4,540.32
  4. Step 4: Simplify right side
    13,900.30x = 94,682,664.15
  5. Step 5: Solve for x
    x = 94,682,664.15/13,900.30
  6. Step 6: Final answer
    x = 6,811.56

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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.