Home / 12,054.48-18,081.72-3,289.20

Finding the Fourth Proportional to 12,054.48, 18,081.72 and 3,289.20

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Solution

The fourth proportional to 12,054.48, 18,081.72 and 3,289.20 is: 4,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,054.48 : 18,081.72 = 3,289.20 : x
  2. Step 2: Convert to fraction form
    12,054.48/18,081.72 = 3,289.20/x
  3. Step 3: Cross multiply
    12,054.48x = 18,081.72 × 3,289.20
  4. Step 4: Simplify right side
    12,054.48x = 59,474,393.42
  5. Step 5: Solve for x
    x = 59,474,393.42/12,054.48
  6. Step 6: Final answer
    x = 4,933.80

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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.