Home / 11,271.05-16,905.62-3,479.93

Finding the Fourth Proportional to 11,271.05, 16,905.62 and 3,479.93

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Solution

The fourth proportional to 11,271.05, 16,905.62 and 3,479.93 is: 5,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.05 : 16,905.62 = 3,479.93 : x
  2. Step 2: Convert to fraction form
    11,271.05/16,905.62 = 3,479.93/x
  3. Step 3: Cross multiply
    11,271.05x = 16,905.62 × 3,479.93
  4. Step 4: Simplify right side
    11,271.05x = 58,830,289.68
  5. Step 5: Solve for x
    x = 58,830,289.68/11,271.05
  6. Step 6: Final answer
    x = 5,219.59

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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.