Home / 8,538.42-12,812.48-6,817.98

Finding the Fourth Proportional to 8,538.42, 12,812.48 and 6,817.98

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Solution

The fourth proportional to 8,538.42, 12,812.48 and 6,817.98 is: 10,230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.42 : 12,812.48 = 6,817.98 : x
  2. Step 2: Convert to fraction form
    8,538.42/12,812.48 = 6,817.98/x
  3. Step 3: Cross multiply
    8,538.42x = 12,812.48 × 6,817.98
  4. Step 4: Simplify right side
    8,538.42x = 87,355,232.39
  5. Step 5: Solve for x
    x = 87,355,232.39/8,538.42
  6. Step 6: Final answer
    x = 10,230.84

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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.