Home / 11,131.30-16,686.63-4,107.44

Finding the Fourth Proportional to 11,131.30, 16,686.63 and 4,107.44

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Solution

The fourth proportional to 11,131.30, 16,686.63 and 4,107.44 is: 6,157.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.30 : 16,686.63 = 4,107.44 : x
  2. Step 2: Convert to fraction form
    11,131.30/16,686.63 = 4,107.44/x
  3. Step 3: Cross multiply
    11,131.30x = 16,686.63 × 4,107.44
  4. Step 4: Simplify right side
    11,131.30x = 68,539,331.53
  5. Step 5: Solve for x
    x = 68,539,331.53/11,131.30
  6. Step 6: Final answer
    x = 6,157.35

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1.5x scale

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.