Home / 11,310.64-16,965.94-4,385.12

Finding the Fourth Proportional to 11,310.64, 16,965.94 and 4,385.12

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Solution

The fourth proportional to 11,310.64, 16,965.94 and 4,385.12 is: 6,577.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.64 : 16,965.94 = 4,385.12 : x
  2. Step 2: Convert to fraction form
    11,310.64/16,965.94 = 4,385.12/x
  3. Step 3: Cross multiply
    11,310.64x = 16,965.94 × 4,385.12
  4. Step 4: Simplify right side
    11,310.64x = 74,397,682.81
  5. Step 5: Solve for x
    x = 74,397,682.81/11,310.64
  6. Step 6: Final answer
    x = 6,577.67

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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.