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Finding the Fourth Proportional to 8,811.56, 13,217.35 and 2,655.56

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Solution

The fourth proportional to 8,811.56, 13,217.35 and 2,655.56 is: 3,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,811.56 : 13,217.35 = 2,655.56 : x
  2. Step 2: Convert to fraction form
    8,811.56/13,217.35 = 2,655.56/x
  3. Step 3: Cross multiply
    8,811.56x = 13,217.35 × 2,655.56
  4. Step 4: Simplify right side
    8,811.56x = 35,099,492.37
  5. Step 5: Solve for x
    x = 35,099,492.37/8,811.56
  6. Step 6: Final answer
    x = 3,983.34

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Similar ratio
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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.