Home / 8,421.41-12,629.96-2,496.91

Finding the Fourth Proportional to 8,421.41, 12,629.96 and 2,496.91

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Solution

The fourth proportional to 8,421.41, 12,629.96 and 2,496.91 is: 3,744.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.41 : 12,629.96 = 2,496.91 : x
  2. Step 2: Convert to fraction form
    8,421.41/12,629.96 = 2,496.91/x
  3. Step 3: Cross multiply
    8,421.41x = 12,629.96 × 2,496.91
  4. Step 4: Simplify right side
    8,421.41x = 31,535,895.45
  5. Step 5: Solve for x
    x = 31,535,895.45/8,421.41
  6. Step 6: Final answer
    x = 3,744.73

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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.