Home / 11,678.10-16,115.65-6,372.87

Finding the Fourth Proportional to 11,678.10, 16,115.65 and 6,372.87

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Solution

The fourth proportional to 11,678.10, 16,115.65 and 6,372.87 is: 8,794.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.10 : 16,115.65 = 6,372.87 : x
  2. Step 2: Convert to fraction form
    11,678.10/16,115.65 = 6,372.87/x
  3. Step 3: Cross multiply
    11,678.10x = 16,115.65 × 6,372.87
  4. Step 4: Simplify right side
    11,678.10x = 102,702,942.42
  5. Step 5: Solve for x
    x = 102,702,942.42/11,678.10
  6. Step 6: Final answer
    x = 8,794.49

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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.