Home / 11,307.48-16,969.32-8,376.96

Finding the Fourth Proportional to 11,307.48, 16,969.32 and 8,376.96

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Solution

The fourth proportional to 11,307.48, 16,969.32 and 8,376.96 is: 12,571.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.48 : 16,969.32 = 8,376.96 : x
  2. Step 2: Convert to fraction form
    11,307.48/16,969.32 = 8,376.96/x
  3. Step 3: Cross multiply
    11,307.48x = 16,969.32 × 8,376.96
  4. Step 4: Simplify right side
    11,307.48x = 142,151,314.87
  5. Step 5: Solve for x
    x = 142,151,314.87/11,307.48
  6. Step 6: Final answer
    x = 12,571.44

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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.