Home / 7,427.30-11,137.35-4,136.90

Finding the Fourth Proportional to 7,427.30, 11,137.35 and 4,136.90

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Solution

The fourth proportional to 7,427.30, 11,137.35 and 4,136.90 is: 6,203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.30 : 11,137.35 = 4,136.90 : x
  2. Step 2: Convert to fraction form
    7,427.30/11,137.35 = 4,136.90/x
  3. Step 3: Cross multiply
    7,427.30x = 11,137.35 × 4,136.90
  4. Step 4: Simplify right side
    7,427.30x = 46,074,103.22
  5. Step 5: Solve for x
    x = 46,074,103.22/7,427.30
  6. Step 6: Final answer
    x = 6,203.34

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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.