Home / 13,969.26-19,159.47-12,394.62

Finding the Fourth Proportional to 13,969.26, 19,159.47 and 12,394.62

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Solution

The fourth proportional to 13,969.26, 19,159.47 and 12,394.62 is: 16,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.26 : 19,159.47 = 12,394.62 : x
  2. Step 2: Convert to fraction form
    13,969.26/19,159.47 = 12,394.62/x
  3. Step 3: Cross multiply
    13,969.26x = 19,159.47 × 12,394.62
  4. Step 4: Simplify right side
    13,969.26x = 237,474,350.05
  5. Step 5: Solve for x
    x = 237,474,350.05/13,969.26
  6. Step 6: Final answer
    x = 16,999.78

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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.