Home / 11,661.05-17,485.14-7,967.45

Finding the Fourth Proportional to 11,661.05, 17,485.14 and 7,967.45

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Solution

The fourth proportional to 11,661.05, 17,485.14 and 7,967.45 is: 11,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,661.05 : 17,485.14 = 7,967.45 : x
  2. Step 2: Convert to fraction form
    11,661.05/17,485.14 = 7,967.45/x
  3. Step 3: Cross multiply
    11,661.05x = 17,485.14 × 7,967.45
  4. Step 4: Simplify right side
    11,661.05x = 139,311,891.27
  5. Step 5: Solve for x
    x = 139,311,891.27/11,661.05
  6. Step 6: Final answer
    x = 11,946.78

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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.