Home / 11,505.09-17,245.67-7,807.62

Finding the Fourth Proportional to 11,505.09, 17,245.67 and 7,807.62

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Solution

The fourth proportional to 11,505.09, 17,245.67 and 7,807.62 is: 11,703.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.09 : 17,245.67 = 7,807.62 : x
  2. Step 2: Convert to fraction form
    11,505.09/17,245.67 = 7,807.62/x
  3. Step 3: Cross multiply
    11,505.09x = 17,245.67 × 7,807.62
  4. Step 4: Simplify right side
    11,505.09x = 134,647,598.97
  5. Step 5: Solve for x
    x = 134,647,598.97/11,505.09
  6. Step 6: Final answer
    x = 11,703.31

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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.