Home / 7,767.06-10,724.87-6,331.65

Finding the Fourth Proportional to 7,767.06, 10,724.87 and 6,331.65

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Solution

The fourth proportional to 7,767.06, 10,724.87 and 6,331.65 is: 8,742.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.06 : 10,724.87 = 6,331.65 : x
  2. Step 2: Convert to fraction form
    7,767.06/10,724.87 = 6,331.65/x
  3. Step 3: Cross multiply
    7,767.06x = 10,724.87 × 6,331.65
  4. Step 4: Simplify right side
    7,767.06x = 67,906,091.48
  5. Step 5: Solve for x
    x = 67,906,091.48/7,767.06
  6. Step 6: Final answer
    x = 8,742.83

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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.