Home / 12,148.79-18,181.85-7,466.33

Finding the Fourth Proportional to 12,148.79, 18,181.85 and 7,466.33

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Solution

The fourth proportional to 12,148.79, 18,181.85 and 7,466.33 is: 11,174.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.79 : 18,181.85 = 7,466.33 : x
  2. Step 2: Convert to fraction form
    12,148.79/18,181.85 = 7,466.33/x
  3. Step 3: Cross multiply
    12,148.79x = 18,181.85 × 7,466.33
  4. Step 4: Simplify right side
    12,148.79x = 135,751,563.87
  5. Step 5: Solve for x
    x = 135,751,563.87/12,148.79
  6. Step 6: Final answer
    x = 11,174.09

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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.