Home / 11,178.25-16,771.96-5,911.89

Finding the Fourth Proportional to 11,178.25, 16,771.96 and 5,911.89

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Solution

The fourth proportional to 11,178.25, 16,771.96 and 5,911.89 is: 8,870.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.25 : 16,771.96 = 5,911.89 : x
  2. Step 2: Convert to fraction form
    11,178.25/16,771.96 = 5,911.89/x
  3. Step 3: Cross multiply
    11,178.25x = 16,771.96 × 5,911.89
  4. Step 4: Simplify right side
    11,178.25x = 99,153,927.10
  5. Step 5: Solve for x
    x = 99,153,927.10/11,178.25
  6. Step 6: Final answer
    x = 8,870.25

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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.