Home / 12,365.75-18,548.67-4,157.75

Finding the Fourth Proportional to 12,365.75, 18,548.67 and 4,157.75

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Solution

The fourth proportional to 12,365.75, 18,548.67 and 4,157.75 is: 6,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.75 : 18,548.67 = 4,157.75 : x
  2. Step 2: Convert to fraction form
    12,365.75/18,548.67 = 4,157.75/x
  3. Step 3: Cross multiply
    12,365.75x = 18,548.67 × 4,157.75
  4. Step 4: Simplify right side
    12,365.75x = 77,120,732.69
  5. Step 5: Solve for x
    x = 77,120,732.69/12,365.75
  6. Step 6: Final answer
    x = 6,236.64

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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.