Home / 13,911.64-19,197.77-9,939.50

Finding the Fourth Proportional to 13,911.64, 19,197.77 and 9,939.50

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Solution

The fourth proportional to 13,911.64, 19,197.77 and 9,939.50 is: 13,716.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.64 : 19,197.77 = 9,939.50 : x
  2. Step 2: Convert to fraction form
    13,911.64/19,197.77 = 9,939.50/x
  3. Step 3: Cross multiply
    13,911.64x = 19,197.77 × 9,939.50
  4. Step 4: Simplify right side
    13,911.64x = 190,816,234.92
  5. Step 5: Solve for x
    x = 190,816,234.92/13,911.64
  6. Step 6: Final answer
    x = 13,716.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.