Home / 8,505.11-12,758.99-4,342.87

Finding the Fourth Proportional to 8,505.11, 12,758.99 and 4,342.87

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Solution

The fourth proportional to 8,505.11, 12,758.99 and 4,342.87 is: 6,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505.11 : 12,758.99 = 4,342.87 : x
  2. Step 2: Convert to fraction form
    8,505.11/12,758.99 = 4,342.87/x
  3. Step 3: Cross multiply
    8,505.11x = 12,758.99 × 4,342.87
  4. Step 4: Simplify right side
    8,505.11x = 55,410,557.37
  5. Step 5: Solve for x
    x = 55,410,557.37/8,505.11
  6. Step 6: Final answer
    x = 6,514.97

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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.