Home / 11,438.28-17,156.04-5,191.66

Finding the Fourth Proportional to 11,438.28, 17,156.04 and 5,191.66

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Solution

The fourth proportional to 11,438.28, 17,156.04 and 5,191.66 is: 7,786.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.28 : 17,156.04 = 5,191.66 : x
  2. Step 2: Convert to fraction form
    11,438.28/17,156.04 = 5,191.66/x
  3. Step 3: Cross multiply
    11,438.28x = 17,156.04 × 5,191.66
  4. Step 4: Simplify right side
    11,438.28x = 89,068,326.63
  5. Step 5: Solve for x
    x = 89,068,326.63/11,438.28
  6. Step 6: Final answer
    x = 7,786.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.