Home / 11,750.45-17,621.57-4,728.64

Finding the Fourth Proportional to 11,750.45, 17,621.57 and 4,728.64

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Solution

The fourth proportional to 11,750.45, 17,621.57 and 4,728.64 is: 7,091.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.45 : 17,621.57 = 4,728.64 : x
  2. Step 2: Convert to fraction form
    11,750.45/17,621.57 = 4,728.64/x
  3. Step 3: Cross multiply
    11,750.45x = 17,621.57 × 4,728.64
  4. Step 4: Simplify right side
    11,750.45x = 83,326,037.12
  5. Step 5: Solve for x
    x = 83,326,037.12/11,750.45
  6. Step 6: Final answer
    x = 7,091.31

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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.