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Finding the Fourth Proportional to 8,402.64, 11,595.72 and 4,676.64

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Solution

The fourth proportional to 8,402.64, 11,595.72 and 4,676.64 is: 6,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.64 : 11,595.72 = 4,676.64 : x
  2. Step 2: Convert to fraction form
    8,402.64/11,595.72 = 4,676.64/x
  3. Step 3: Cross multiply
    8,402.64x = 11,595.72 × 4,676.64
  4. Step 4: Simplify right side
    8,402.64x = 54,229,007.98
  5. Step 5: Solve for x
    x = 54,229,007.98/8,402.64
  6. Step 6: Final answer
    x = 6,453.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.