Home / 11,271.90-16,905.72-4,696.32

Finding the Fourth Proportional to 11,271.90, 16,905.72 and 4,696.32

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Solution

The fourth proportional to 11,271.90, 16,905.72 and 4,696.32 is: 7,043.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.90 : 16,905.72 = 4,696.32 : x
  2. Step 2: Convert to fraction form
    11,271.90/16,905.72 = 4,696.32/x
  3. Step 3: Cross multiply
    11,271.90x = 16,905.72 × 4,696.32
  4. Step 4: Simplify right side
    11,271.90x = 79,394,670.95
  5. Step 5: Solve for x
    x = 79,394,670.95/11,271.90
  6. Step 6: Final answer
    x = 7,043.59

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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.