Home / 13,164.48-18,155.22-10,922.81

Finding the Fourth Proportional to 13,164.48, 18,155.22 and 10,922.81

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Solution

The fourth proportional to 13,164.48, 18,155.22 and 10,922.81 is: 15,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.48 : 18,155.22 = 10,922.81 : x
  2. Step 2: Convert to fraction form
    13,164.48/18,155.22 = 10,922.81/x
  3. Step 3: Cross multiply
    13,164.48x = 18,155.22 × 10,922.81
  4. Step 4: Simplify right side
    13,164.48x = 198,305,927.79
  5. Step 5: Solve for x
    x = 198,305,927.79/13,164.48
  6. Step 6: Final answer
    x = 15,063.71

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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.