Home / 7,727.28-10,664.31-6,466.11

Finding the Fourth Proportional to 7,727.28, 10,664.31 and 6,466.11

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Solution

The fourth proportional to 7,727.28, 10,664.31 and 6,466.11 is: 8,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.28 : 10,664.31 = 6,466.11 : x
  2. Step 2: Convert to fraction form
    7,727.28/10,664.31 = 6,466.11/x
  3. Step 3: Cross multiply
    7,727.28x = 10,664.31 × 6,466.11
  4. Step 4: Simplify right side
    7,727.28x = 68,956,601.53
  5. Step 5: Solve for x
    x = 68,956,601.53/7,727.28
  6. Step 6: Final answer
    x = 8,923.79

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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.