Home / 11,317.32-16,943.04-8,408.52

Finding the Fourth Proportional to 11,317.32, 16,943.04 and 8,408.52

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Solution

The fourth proportional to 11,317.32, 16,943.04 and 8,408.52 is: 12,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.32 : 16,943.04 = 8,408.52 : x
  2. Step 2: Convert to fraction form
    11,317.32/16,943.04 = 8,408.52/x
  3. Step 3: Cross multiply
    11,317.32x = 16,943.04 × 8,408.52
  4. Step 4: Simplify right side
    11,317.32x = 142,465,890.70
  5. Step 5: Solve for x
    x = 142,465,890.70/11,317.32
  6. Step 6: Final answer
    x = 12,588.31

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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.