Home / 7,803.65-11,704.31-2,872.14

Finding the Fourth Proportional to 7,803.65, 11,704.31 and 2,872.14

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Solution

The fourth proportional to 7,803.65, 11,704.31 and 2,872.14 is: 4,307.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.65 : 11,704.31 = 2,872.14 : x
  2. Step 2: Convert to fraction form
    7,803.65/11,704.31 = 2,872.14/x
  3. Step 3: Cross multiply
    7,803.65x = 11,704.31 × 2,872.14
  4. Step 4: Simplify right side
    7,803.65x = 33,616,416.92
  5. Step 5: Solve for x
    x = 33,616,416.92/7,803.65
  6. Step 6: Final answer
    x = 4,307.78

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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.