Home / 11,347.72-17,030.58-4,778.44

Finding the Fourth Proportional to 11,347.72, 17,030.58 and 4,778.44

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Solution

The fourth proportional to 11,347.72, 17,030.58 and 4,778.44 is: 7,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,347.72 : 17,030.58 = 4,778.44 : x
  2. Step 2: Convert to fraction form
    11,347.72/17,030.58 = 4,778.44/x
  3. Step 3: Cross multiply
    11,347.72x = 17,030.58 × 4,778.44
  4. Step 4: Simplify right side
    11,347.72x = 81,379,604.70
  5. Step 5: Solve for x
    x = 81,379,604.70/11,347.72
  6. Step 6: Final answer
    x = 7,171.45

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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.