Home / 8,861.35-13,271.87-6,871.03

Finding the Fourth Proportional to 8,861.35, 13,271.87 and 6,871.03

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Solution

The fourth proportional to 8,861.35, 13,271.87 and 6,871.03 is: 10,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.35 : 13,271.87 = 6,871.03 : x
  2. Step 2: Convert to fraction form
    8,861.35/13,271.87 = 6,871.03/x
  3. Step 3: Cross multiply
    8,861.35x = 13,271.87 × 6,871.03
  4. Step 4: Simplify right side
    8,861.35x = 91,191,350.57
  5. Step 5: Solve for x
    x = 91,191,350.57/8,861.35
  6. Step 6: Final answer
    x = 10,290.91

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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.