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Finding the Fourth Proportional to 8,604.81, 12,907.65 and 2,685.73

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Solution

The fourth proportional to 8,604.81, 12,907.65 and 2,685.73 is: 4,028.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.81 : 12,907.65 = 2,685.73 : x
  2. Step 2: Convert to fraction form
    8,604.81/12,907.65 = 2,685.73/x
  3. Step 3: Cross multiply
    8,604.81x = 12,907.65 × 2,685.73
  4. Step 4: Simplify right side
    8,604.81x = 34,666,462.83
  5. Step 5: Solve for x
    x = 34,666,462.83/8,604.81
  6. Step 6: Final answer
    x = 4,028.73

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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.