Home / 12,277.52-18,420.82-7,350.60

Finding the Fourth Proportional to 12,277.52, 18,420.82 and 7,350.60

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Solution

The fourth proportional to 12,277.52, 18,420.82 and 7,350.60 is: 11,028.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.52 : 18,420.82 = 7,350.60 : x
  2. Step 2: Convert to fraction form
    12,277.52/18,420.82 = 7,350.60/x
  3. Step 3: Cross multiply
    12,277.52x = 18,420.82 × 7,350.60
  4. Step 4: Simplify right side
    12,277.52x = 135,404,079.49
  5. Step 5: Solve for x
    x = 135,404,079.49/12,277.52
  6. Step 6: Final answer
    x = 11,028.62

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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.