Home / 12,102.75-18,145.62-4,706.64

Finding the Fourth Proportional to 12,102.75, 18,145.62 and 4,706.64

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Solution

The fourth proportional to 12,102.75, 18,145.62 and 4,706.64 is: 7,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.75 : 18,145.62 = 4,706.64 : x
  2. Step 2: Convert to fraction form
    12,102.75/18,145.62 = 4,706.64/x
  3. Step 3: Cross multiply
    12,102.75x = 18,145.62 × 4,706.64
  4. Step 4: Simplify right side
    12,102.75x = 85,404,900.92
  5. Step 5: Solve for x
    x = 85,404,900.92/12,102.75
  6. Step 6: Final answer
    x = 7,056.65

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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.