Home / 7,964.44-10,991.46-4,428.28

Finding the Fourth Proportional to 7,964.44, 10,991.46 and 4,428.28

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Solution

The fourth proportional to 7,964.44, 10,991.46 and 4,428.28 is: 6,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.44 : 10,991.46 = 4,428.28 : x
  2. Step 2: Convert to fraction form
    7,964.44/10,991.46 = 4,428.28/x
  3. Step 3: Cross multiply
    7,964.44x = 10,991.46 × 4,428.28
  4. Step 4: Simplify right side
    7,964.44x = 48,673,262.49
  5. Step 5: Solve for x
    x = 48,673,262.49/7,964.44
  6. Step 6: Final answer
    x = 6,111.32

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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.