Home / 13,855.14-20,785.63-4,494.43

Finding the Fourth Proportional to 13,855.14, 20,785.63 and 4,494.43

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Solution

The fourth proportional to 13,855.14, 20,785.63 and 4,494.43 is: 6,742.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.14 : 20,785.63 = 4,494.43 : x
  2. Step 2: Convert to fraction form
    13,855.14/20,785.63 = 4,494.43/x
  3. Step 3: Cross multiply
    13,855.14x = 20,785.63 × 4,494.43
  4. Step 4: Simplify right side
    13,855.14x = 93,419,457.10
  5. Step 5: Solve for x
    x = 93,419,457.10/13,855.14
  6. Step 6: Final answer
    x = 6,742.59

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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.