Home / 10,450.08-15,662.16-8,879.76

Finding the Fourth Proportional to 10,450.08, 15,662.16 and 8,879.76

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Solution

The fourth proportional to 10,450.08, 15,662.16 and 8,879.76 is: 13,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,450.08 : 15,662.16 = 8,879.76 : x
  2. Step 2: Convert to fraction form
    10,450.08/15,662.16 = 8,879.76/x
  3. Step 3: Cross multiply
    10,450.08x = 15,662.16 × 8,879.76
  4. Step 4: Simplify right side
    10,450.08x = 139,076,221.88
  5. Step 5: Solve for x
    x = 139,076,221.88/10,450.08
  6. Step 6: Final answer
    x = 13,308.63

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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.