Home / 18,933.25-28,407.93-7,848

Finding the Fourth Proportional to 18,933.25, 28,407.93 and 7,848

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Solution

The fourth proportional to 18,933.25, 28,407.93 and 7,848 is: 11,775.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.25 : 28,407.93 = 7,848 : x
  2. Step 2: Convert to fraction form
    18,933.25/28,407.93 = 7,848/x
  3. Step 3: Cross multiply
    18,933.25x = 28,407.93 × 7,848
  4. Step 4: Simplify right side
    18,933.25x = 222,945,434.64
  5. Step 5: Solve for x
    x = 222,945,434.64/18,933.25
  6. Step 6: Final answer
    x = 11,775.34

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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.