Home / 11,968.86-17,914.15-8,805.45

Finding the Fourth Proportional to 11,968.86, 17,914.15 and 8,805.45

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Solution

The fourth proportional to 11,968.86, 17,914.15 and 8,805.45 is: 13,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.86 : 17,914.15 = 8,805.45 : x
  2. Step 2: Convert to fraction form
    11,968.86/17,914.15 = 8,805.45/x
  3. Step 3: Cross multiply
    11,968.86x = 17,914.15 × 8,805.45
  4. Step 4: Simplify right side
    11,968.86x = 157,742,152.12
  5. Step 5: Solve for x
    x = 157,742,152.12/11,968.86
  6. Step 6: Final answer
    x = 13,179.38

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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.