Home / 8,628.17-12,930.33-3,936.74

Finding the Fourth Proportional to 8,628.17, 12,930.33 and 3,936.74

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Solution

The fourth proportional to 8,628.17, 12,930.33 and 3,936.74 is: 5,899.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628.17 : 12,930.33 = 3,936.74 : x
  2. Step 2: Convert to fraction form
    8,628.17/12,930.33 = 3,936.74/x
  3. Step 3: Cross multiply
    8,628.17x = 12,930.33 × 3,936.74
  4. Step 4: Simplify right side
    8,628.17x = 50,903,347.32
  5. Step 5: Solve for x
    x = 50,903,347.32/8,628.17
  6. Step 6: Final answer
    x = 5,899.67

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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.