Home / 18,158.21-25,055.60-10,198.91

Finding the Fourth Proportional to 18,158.21, 25,055.60 and 10,198.91

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Solution

The fourth proportional to 18,158.21, 25,055.60 and 10,198.91 is: 14,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.21 : 25,055.60 = 10,198.91 : x
  2. Step 2: Convert to fraction form
    18,158.21/25,055.60 = 10,198.91/x
  3. Step 3: Cross multiply
    18,158.21x = 25,055.60 × 10,198.91
  4. Step 4: Simplify right side
    18,158.21x = 255,539,633.12
  5. Step 5: Solve for x
    x = 255,539,633.12/18,158.21
  6. Step 6: Final answer
    x = 14,072.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.