Home / 11,486.40-17,229.60-6,571.20

Finding the Fourth Proportional to 11,486.40, 17,229.60 and 6,571.20

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Solution

The fourth proportional to 11,486.40, 17,229.60 and 6,571.20 is: 9,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.40 : 17,229.60 = 6,571.20 : x
  2. Step 2: Convert to fraction form
    11,486.40/17,229.60 = 6,571.20/x
  3. Step 3: Cross multiply
    11,486.40x = 17,229.60 × 6,571.20
  4. Step 4: Simplify right side
    11,486.40x = 113,219,147.52
  5. Step 5: Solve for x
    x = 113,219,147.52/11,486.40
  6. Step 6: Final answer
    x = 9,856.80

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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.