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Finding the Fourth Proportional to 8,313.78, 12,460.26 and 4,154.94

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Solution

The fourth proportional to 8,313.78, 12,460.26 and 4,154.94 is: 6,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.78 : 12,460.26 = 4,154.94 : x
  2. Step 2: Convert to fraction form
    8,313.78/12,460.26 = 4,154.94/x
  3. Step 3: Cross multiply
    8,313.78x = 12,460.26 × 4,154.94
  4. Step 4: Simplify right side
    8,313.78x = 51,771,632.68
  5. Step 5: Solve for x
    x = 51,771,632.68/8,313.78
  6. Step 6: Final answer
    x = 6,227.21

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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.