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Finding the Fourth Proportional to 8,245.37, 12,370.78 and 5,482.91

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Solution

The fourth proportional to 8,245.37, 12,370.78 and 5,482.91 is: 8,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.37 : 12,370.78 = 5,482.91 : x
  2. Step 2: Convert to fraction form
    8,245.37/12,370.78 = 5,482.91/x
  3. Step 3: Cross multiply
    8,245.37x = 12,370.78 × 5,482.91
  4. Step 4: Simplify right side
    8,245.37x = 67,827,911.15
  5. Step 5: Solve for x
    x = 67,827,911.15/8,245.37
  6. Step 6: Final answer
    x = 8,226.19

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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.