Home / 13,745.06-18,968.46-8,437.94

Finding the Fourth Proportional to 13,745.06, 18,968.46 and 8,437.94

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Solution

The fourth proportional to 13,745.06, 18,968.46 and 8,437.94 is: 11,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.06 : 18,968.46 = 8,437.94 : x
  2. Step 2: Convert to fraction form
    13,745.06/18,968.46 = 8,437.94/x
  3. Step 3: Cross multiply
    13,745.06x = 18,968.46 × 8,437.94
  4. Step 4: Simplify right side
    13,745.06x = 160,054,727.37
  5. Step 5: Solve for x
    x = 160,054,727.37/13,745.06
  6. Step 6: Final answer
    x = 11,644.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.