Home / 18,896.10-28,347.60-7,796.61

Finding the Fourth Proportional to 18,896.10, 28,347.60 and 7,796.61

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Solution

The fourth proportional to 18,896.10, 28,347.60 and 7,796.61 is: 11,696.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.10 : 28,347.60 = 7,796.61 : x
  2. Step 2: Convert to fraction form
    18,896.10/28,347.60 = 7,796.61/x
  3. Step 3: Cross multiply
    18,896.10x = 28,347.60 × 7,796.61
  4. Step 4: Simplify right side
    18,896.10x = 221,015,181.64
  5. Step 5: Solve for x
    x = 221,015,181.64/18,896.10
  6. Step 6: Final answer
    x = 11,696.34

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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.