Home / 12,486.06-18,745.56-11,454.53

Finding the Fourth Proportional to 12,486.06, 18,745.56 and 11,454.53

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Solution

The fourth proportional to 12,486.06, 18,745.56 and 11,454.53 is: 17,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.06 : 18,745.56 = 11,454.53 : x
  2. Step 2: Convert to fraction form
    12,486.06/18,745.56 = 11,454.53/x
  3. Step 3: Cross multiply
    12,486.06x = 18,745.56 × 11,454.53
  4. Step 4: Simplify right side
    12,486.06x = 214,721,485.66
  5. Step 5: Solve for x
    x = 214,721,485.66/12,486.06
  6. Step 6: Final answer
    x = 17,196.90

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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.