Home / 8,629.92-12,926.28-4,930.20

Finding the Fourth Proportional to 8,629.92, 12,926.28 and 4,930.20

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Solution

The fourth proportional to 8,629.92, 12,926.28 and 4,930.20 is: 7,384.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.92 : 12,926.28 = 4,930.20 : x
  2. Step 2: Convert to fraction form
    8,629.92/12,926.28 = 4,930.20/x
  3. Step 3: Cross multiply
    8,629.92x = 12,926.28 × 4,930.20
  4. Step 4: Simplify right side
    8,629.92x = 63,729,145.66
  5. Step 5: Solve for x
    x = 63,729,145.66/8,629.92
  6. Step 6: Final answer
    x = 7,384.67

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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.