Home / 15,918.84-21,968.58-8,845.96

Finding the Fourth Proportional to 15,918.84, 21,968.58 and 8,845.96

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Solution

The fourth proportional to 15,918.84, 21,968.58 and 8,845.96 is: 12,207.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.84 : 21,968.58 = 8,845.96 : x
  2. Step 2: Convert to fraction form
    15,918.84/21,968.58 = 8,845.96/x
  3. Step 3: Cross multiply
    15,918.84x = 21,968.58 × 8,845.96
  4. Step 4: Simplify right side
    15,918.84x = 194,333,179.94
  5. Step 5: Solve for x
    x = 194,333,179.94/15,918.84
  6. Step 6: Final answer
    x = 12,207.75

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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.