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Finding the Fourth Proportional to 7,885.80, 11,844.84 and 7,623.36

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Solution

The fourth proportional to 7,885.80, 11,844.84 and 7,623.36 is: 11,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.80 : 11,844.84 = 7,623.36 : x
  2. Step 2: Convert to fraction form
    7,885.80/11,844.84 = 7,623.36/x
  3. Step 3: Cross multiply
    7,885.80x = 11,844.84 × 7,623.36
  4. Step 4: Simplify right side
    7,885.80x = 90,297,479.46
  5. Step 5: Solve for x
    x = 90,297,479.46/7,885.80
  6. Step 6: Final answer
    x = 11,450.64

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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.