Home / 13,661.44-18,852.56-8,000.08

Finding the Fourth Proportional to 13,661.44, 18,852.56 and 8,000.08

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Solution

The fourth proportional to 13,661.44, 18,852.56 and 8,000.08 is: 11,039.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661.44 : 18,852.56 = 8,000.08 : x
  2. Step 2: Convert to fraction form
    13,661.44/18,852.56 = 8,000.08/x
  3. Step 3: Cross multiply
    13,661.44x = 18,852.56 × 8,000.08
  4. Step 4: Simplify right side
    13,661.44x = 150,821,988.20
  5. Step 5: Solve for x
    x = 150,821,988.20/13,661.44
  6. Step 6: Final answer
    x = 11,039.98

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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.