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Finding the Fourth Proportional to 8,315.75, 12,473.58 and 2,769.08

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Solution

The fourth proportional to 8,315.75, 12,473.58 and 2,769.08 is: 4,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.75 : 12,473.58 = 2,769.08 : x
  2. Step 2: Convert to fraction form
    8,315.75/12,473.58 = 2,769.08/x
  3. Step 3: Cross multiply
    8,315.75x = 12,473.58 × 2,769.08
  4. Step 4: Simplify right side
    8,315.75x = 34,540,278.54
  5. Step 5: Solve for x
    x = 34,540,278.54/8,315.75
  6. Step 6: Final answer
    x = 4,153.60

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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.