Home / 8,626.56-12,938.76-3,428.52

Finding the Fourth Proportional to 8,626.56, 12,938.76 and 3,428.52

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Solution

The fourth proportional to 8,626.56, 12,938.76 and 3,428.52 is: 5,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,626.56 : 12,938.76 = 3,428.52 : x
  2. Step 2: Convert to fraction form
    8,626.56/12,938.76 = 3,428.52/x
  3. Step 3: Cross multiply
    8,626.56x = 12,938.76 × 3,428.52
  4. Step 4: Simplify right side
    8,626.56x = 44,360,797.44
  5. Step 5: Solve for x
    x = 44,360,797.44/8,626.56
  6. Step 6: Final answer
    x = 5,142.35

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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.