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Finding the Fourth Proportional to 8,176.76, 12,259.68 and 3,245.08

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Solution

The fourth proportional to 8,176.76, 12,259.68 and 3,245.08 is: 4,865.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.76 : 12,259.68 = 3,245.08 : x
  2. Step 2: Convert to fraction form
    8,176.76/12,259.68 = 3,245.08/x
  3. Step 3: Cross multiply
    8,176.76x = 12,259.68 × 3,245.08
  4. Step 4: Simplify right side
    8,176.76x = 39,783,642.37
  5. Step 5: Solve for x
    x = 39,783,642.37/8,176.76
  6. Step 6: Final answer
    x = 4,865.45

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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.