Home / 8,618.76-12,930.66-2,775.24

Finding the Fourth Proportional to 8,618.76, 12,930.66 and 2,775.24

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Solution

The fourth proportional to 8,618.76, 12,930.66 and 2,775.24 is: 4,163.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.76 : 12,930.66 = 2,775.24 : x
  2. Step 2: Convert to fraction form
    8,618.76/12,930.66 = 2,775.24/x
  3. Step 3: Cross multiply
    8,618.76x = 12,930.66 × 2,775.24
  4. Step 4: Simplify right side
    8,618.76x = 35,885,684.86
  5. Step 5: Solve for x
    x = 35,885,684.86/8,618.76
  6. Step 6: Final answer
    x = 4,163.67

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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.