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Finding the Fourth Proportional to 8,850.42, 12,213.54 and 5,313.65

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Solution

The fourth proportional to 8,850.42, 12,213.54 and 5,313.65 is: 7,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.42 : 12,213.54 = 5,313.65 : x
  2. Step 2: Convert to fraction form
    8,850.42/12,213.54 = 5,313.65/x
  3. Step 3: Cross multiply
    8,850.42x = 12,213.54 × 5,313.65
  4. Step 4: Simplify right side
    8,850.42x = 64,898,415.75
  5. Step 5: Solve for x
    x = 64,898,415.75/8,850.42
  6. Step 6: Final answer
    x = 7,332.81

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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.