Home / 13,941.48-19,157.37-11,142.12

Finding the Fourth Proportional to 13,941.48, 19,157.37 and 11,142.12

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Solution

The fourth proportional to 13,941.48, 19,157.37 and 11,142.12 is: 15,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.48 : 19,157.37 = 11,142.12 : x
  2. Step 2: Convert to fraction form
    13,941.48/19,157.37 = 11,142.12/x
  3. Step 3: Cross multiply
    13,941.48x = 19,157.37 × 11,142.12
  4. Step 4: Simplify right side
    13,941.48x = 213,453,715.42
  5. Step 5: Solve for x
    x = 213,453,715.42/13,941.48
  6. Step 6: Final answer
    x = 15,310.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.