Home / 12,135.25-18,207.23-4,745.01

Finding the Fourth Proportional to 12,135.25, 18,207.23 and 4,745.01

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Solution

The fourth proportional to 12,135.25, 18,207.23 and 4,745.01 is: 7,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.25 : 18,207.23 = 4,745.01 : x
  2. Step 2: Convert to fraction form
    12,135.25/18,207.23 = 4,745.01/x
  3. Step 3: Cross multiply
    12,135.25x = 18,207.23 × 4,745.01
  4. Step 4: Simplify right side
    12,135.25x = 86,393,464.70
  5. Step 5: Solve for x
    x = 86,393,464.70/12,135.25
  6. Step 6: Final answer
    x = 7,119.22

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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.