Home / 8,856.27-13,288-3,311.20

Finding the Fourth Proportional to 8,856.27, 13,288 and 3,311.20

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Solution

The fourth proportional to 8,856.27, 13,288 and 3,311.20 is: 4,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.27 : 13,288 = 3,311.20 : x
  2. Step 2: Convert to fraction form
    8,856.27/13,288 = 3,311.20/x
  3. Step 3: Cross multiply
    8,856.27x = 13,288 × 3,311.20
  4. Step 4: Simplify right side
    8,856.27x = 43,999,225.60
  5. Step 5: Solve for x
    x = 43,999,225.60/8,856.27
  6. Step 6: Final answer
    x = 4,968.14

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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.