Home / 8,921.08-13,363.43-4,226.86

Finding the Fourth Proportional to 8,921.08, 13,363.43 and 4,226.86

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Solution

The fourth proportional to 8,921.08, 13,363.43 and 4,226.86 is: 6,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.08 : 13,363.43 = 4,226.86 : x
  2. Step 2: Convert to fraction form
    8,921.08/13,363.43 = 4,226.86/x
  3. Step 3: Cross multiply
    8,921.08x = 13,363.43 × 4,226.86
  4. Step 4: Simplify right side
    8,921.08x = 56,485,324.89
  5. Step 5: Solve for x
    x = 56,485,324.89/8,921.08
  6. Step 6: Final answer
    x = 6,331.67

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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.