Home / 13,244.28-18,273.48-8,531.28

Finding the Fourth Proportional to 13,244.28, 18,273.48 and 8,531.28

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Solution

The fourth proportional to 13,244.28, 18,273.48 and 8,531.28 is: 11,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.28 : 18,273.48 = 8,531.28 : x
  2. Step 2: Convert to fraction form
    13,244.28/18,273.48 = 8,531.28/x
  3. Step 3: Cross multiply
    13,244.28x = 18,273.48 × 8,531.28
  4. Step 4: Simplify right side
    13,244.28x = 155,896,174.45
  5. Step 5: Solve for x
    x = 155,896,174.45/13,244.28
  6. Step 6: Final answer
    x = 11,770.83

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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.