Home / 11,313.63-16,971.60-3,918.08

Finding the Fourth Proportional to 11,313.63, 16,971.60 and 3,918.08

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Solution

The fourth proportional to 11,313.63, 16,971.60 and 3,918.08 is: 5,877.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.63 : 16,971.60 = 3,918.08 : x
  2. Step 2: Convert to fraction form
    11,313.63/16,971.60 = 3,918.08/x
  3. Step 3: Cross multiply
    11,313.63x = 16,971.60 × 3,918.08
  4. Step 4: Simplify right side
    11,313.63x = 66,496,086.53
  5. Step 5: Solve for x
    x = 66,496,086.53/11,313.63
  6. Step 6: Final answer
    x = 5,877.52

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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.