Home / 12,626.57-18,920.61-6,369.12

Finding the Fourth Proportional to 12,626.57, 18,920.61 and 6,369.12

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Solution

The fourth proportional to 12,626.57, 18,920.61 and 6,369.12 is: 9,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.57 : 18,920.61 = 6,369.12 : x
  2. Step 2: Convert to fraction form
    12,626.57/18,920.61 = 6,369.12/x
  3. Step 3: Cross multiply
    12,626.57x = 18,920.61 × 6,369.12
  4. Step 4: Simplify right side
    12,626.57x = 120,507,635.56
  5. Step 5: Solve for x
    x = 120,507,635.56/12,626.57
  6. Step 6: Final answer
    x = 9,543.98

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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.