Home / 11,918.21-16,447.89-6,883.34

Finding the Fourth Proportional to 11,918.21, 16,447.89 and 6,883.34

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Solution

The fourth proportional to 11,918.21, 16,447.89 and 6,883.34 is: 9,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.21 : 16,447.89 = 6,883.34 : x
  2. Step 2: Convert to fraction form
    11,918.21/16,447.89 = 6,883.34/x
  3. Step 3: Cross multiply
    11,918.21x = 16,447.89 × 6,883.34
  4. Step 4: Simplify right side
    11,918.21x = 113,216,419.15
  5. Step 5: Solve for x
    x = 113,216,419.15/11,918.21
  6. Step 6: Final answer
    x = 9,499.45

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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.