Home / 12,164.88-18,255.60-4,374.48

Finding the Fourth Proportional to 12,164.88, 18,255.60 and 4,374.48

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Solution

The fourth proportional to 12,164.88, 18,255.60 and 4,374.48 is: 6,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.88 : 18,255.60 = 4,374.48 : x
  2. Step 2: Convert to fraction form
    12,164.88/18,255.60 = 4,374.48/x
  3. Step 3: Cross multiply
    12,164.88x = 18,255.60 × 4,374.48
  4. Step 4: Simplify right side
    12,164.88x = 79,858,757.09
  5. Step 5: Solve for x
    x = 79,858,757.09/12,164.88
  6. Step 6: Final answer
    x = 6,564.70

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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.