Home / 8,861.40-13,288.52-2,936.72

Finding the Fourth Proportional to 8,861.40, 13,288.52 and 2,936.72

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Solution

The fourth proportional to 8,861.40, 13,288.52 and 2,936.72 is: 4,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.40 : 13,288.52 = 2,936.72 : x
  2. Step 2: Convert to fraction form
    8,861.40/13,288.52 = 2,936.72/x
  3. Step 3: Cross multiply
    8,861.40x = 13,288.52 × 2,936.72
  4. Step 4: Simplify right side
    8,861.40x = 39,024,703.02
  5. Step 5: Solve for x
    x = 39,024,703.02/8,861.40
  6. Step 6: Final answer
    x = 4,403.90

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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.