Home / 13,161.56-18,157.11-7,853.29

Finding the Fourth Proportional to 13,161.56, 18,157.11 and 7,853.29

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Solution

The fourth proportional to 13,161.56, 18,157.11 and 7,853.29 is: 10,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.56 : 18,157.11 = 7,853.29 : x
  2. Step 2: Convert to fraction form
    13,161.56/18,157.11 = 7,853.29/x
  3. Step 3: Cross multiply
    13,161.56x = 18,157.11 × 7,853.29
  4. Step 4: Simplify right side
    13,161.56x = 142,593,050.39
  5. Step 5: Solve for x
    x = 142,593,050.39/13,161.56
  6. Step 6: Final answer
    x = 10,834.06

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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.