Home / 12,149.83-18,228.80-4,359.25

Finding the Fourth Proportional to 12,149.83, 18,228.80 and 4,359.25

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Solution

The fourth proportional to 12,149.83, 18,228.80 and 4,359.25 is: 6,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.83 : 18,228.80 = 4,359.25 : x
  2. Step 2: Convert to fraction form
    12,149.83/18,228.80 = 4,359.25/x
  3. Step 3: Cross multiply
    12,149.83x = 18,228.80 × 4,359.25
  4. Step 4: Simplify right side
    12,149.83x = 79,463,896.40
  5. Step 5: Solve for x
    x = 79,463,896.40/12,149.83
  6. Step 6: Final answer
    x = 6,540.33

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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.