Home / 13,939.50-19,236.56-7,566.09

Finding the Fourth Proportional to 13,939.50, 19,236.56 and 7,566.09

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Solution

The fourth proportional to 13,939.50, 19,236.56 and 7,566.09 is: 10,441.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.50 : 19,236.56 = 7,566.09 : x
  2. Step 2: Convert to fraction form
    13,939.50/19,236.56 = 7,566.09/x
  3. Step 3: Cross multiply
    13,939.50x = 19,236.56 × 7,566.09
  4. Step 4: Simplify right side
    13,939.50x = 145,545,544.25
  5. Step 5: Solve for x
    x = 145,545,544.25/13,939.50
  6. Step 6: Final answer
    x = 10,441.23

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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.