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Finding the Fourth Proportional to 7,994.81, 12,002.59 and 6,147.22

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Solution

The fourth proportional to 7,994.81, 12,002.59 and 6,147.22 is: 9,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.81 : 12,002.59 = 6,147.22 : x
  2. Step 2: Convert to fraction form
    7,994.81/12,002.59 = 6,147.22/x
  3. Step 3: Cross multiply
    7,994.81x = 12,002.59 × 6,147.22
  4. Step 4: Simplify right side
    7,994.81x = 73,782,510.44
  5. Step 5: Solve for x
    x = 73,782,510.44/7,994.81
  6. Step 6: Final answer
    x = 9,228.80

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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.