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Finding the Fourth Proportional to 8,157.99, 12,199.62 and 6,079.44

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Solution

The fourth proportional to 8,157.99, 12,199.62 and 6,079.44 is: 9,091.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.99 : 12,199.62 = 6,079.44 : x
  2. Step 2: Convert to fraction form
    8,157.99/12,199.62 = 6,079.44/x
  3. Step 3: Cross multiply
    8,157.99x = 12,199.62 × 6,079.44
  4. Step 4: Simplify right side
    8,157.99x = 74,166,857.81
  5. Step 5: Solve for x
    x = 74,166,857.81/8,157.99
  6. Step 6: Final answer
    x = 9,091.32

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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.