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Finding the Fourth Proportional to 7,504, 10,355.52 and 4,192.64

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Solution

The fourth proportional to 7,504, 10,355.52 and 4,192.64 is: 5,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,504 : 10,355.52 = 4,192.64 : x
  2. Step 2: Convert to fraction form
    7,504/10,355.52 = 4,192.64/x
  3. Step 3: Cross multiply
    7,504x = 10,355.52 × 4,192.64
  4. Step 4: Simplify right side
    7,504x = 43,416,967.37
  5. Step 5: Solve for x
    x = 43,416,967.37/7,504
  6. Step 6: Final answer
    x = 5,785.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.