Home / 12,161.28-16,793.76-11,506.56

Finding the Fourth Proportional to 12,161.28, 16,793.76 and 11,506.56

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Solution

The fourth proportional to 12,161.28, 16,793.76 and 11,506.56 is: 15,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.28 : 16,793.76 = 11,506.56 : x
  2. Step 2: Convert to fraction form
    12,161.28/16,793.76 = 11,506.56/x
  3. Step 3: Cross multiply
    12,161.28x = 16,793.76 × 11,506.56
  4. Step 4: Simplify right side
    12,161.28x = 193,238,407.07
  5. Step 5: Solve for x
    x = 193,238,407.07/12,161.28
  6. Step 6: Final answer
    x = 15,889.64

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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.