Home / 13,269.44-18,311.81-7,964.26

Finding the Fourth Proportional to 13,269.44, 18,311.81 and 7,964.26

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Solution

The fourth proportional to 13,269.44, 18,311.81 and 7,964.26 is: 10,990.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.44 : 18,311.81 = 7,964.26 : x
  2. Step 2: Convert to fraction form
    13,269.44/18,311.81 = 7,964.26/x
  3. Step 3: Cross multiply
    13,269.44x = 18,311.81 × 7,964.26
  4. Step 4: Simplify right side
    13,269.44x = 145,839,930.31
  5. Step 5: Solve for x
    x = 145,839,930.31/13,269.44
  6. Step 6: Final answer
    x = 10,990.66

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1.5x scale

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.