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Finding the Fourth Proportional to 8,604.40, 12,907.95 and 3,674.06

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Solution

The fourth proportional to 8,604.40, 12,907.95 and 3,674.06 is: 5,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.40 : 12,907.95 = 3,674.06 : x
  2. Step 2: Convert to fraction form
    8,604.40/12,907.95 = 3,674.06/x
  3. Step 3: Cross multiply
    8,604.40x = 12,907.95 × 3,674.06
  4. Step 4: Simplify right side
    8,604.40x = 47,424,601.27
  5. Step 5: Solve for x
    x = 47,424,601.27/8,604.40
  6. Step 6: Final answer
    x = 5,511.67

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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.