Home / 8,515.24-12,776.10-3,895

Finding the Fourth Proportional to 8,515.24, 12,776.10 and 3,895

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Solution

The fourth proportional to 8,515.24, 12,776.10 and 3,895 is: 5,843.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.24 : 12,776.10 = 3,895 : x
  2. Step 2: Convert to fraction form
    8,515.24/12,776.10 = 3,895/x
  3. Step 3: Cross multiply
    8,515.24x = 12,776.10 × 3,895
  4. Step 4: Simplify right side
    8,515.24x = 49,762,909.50
  5. Step 5: Solve for x
    x = 49,762,909.50/8,515.24
  6. Step 6: Final answer
    x = 5,843.98

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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.