Home / 18,517.53-25,554.09-10,019.64

Finding the Fourth Proportional to 18,517.53, 25,554.09 and 10,019.64

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Solution

The fourth proportional to 18,517.53, 25,554.09 and 10,019.64 is: 13,827.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.53 : 25,554.09 = 10,019.64 : x
  2. Step 2: Convert to fraction form
    18,517.53/25,554.09 = 10,019.64/x
  3. Step 3: Cross multiply
    18,517.53x = 25,554.09 × 10,019.64
  4. Step 4: Simplify right side
    18,517.53x = 256,042,782.33
  5. Step 5: Solve for x
    x = 256,042,782.33/18,517.53
  6. Step 6: Final answer
    x = 13,827.05

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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.