Home / 11,806.88-16,299.76-9,148.32

Finding the Fourth Proportional to 11,806.88, 16,299.76 and 9,148.32

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Solution

The fourth proportional to 11,806.88, 16,299.76 and 9,148.32 is: 12,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,806.88 : 16,299.76 = 9,148.32 : x
  2. Step 2: Convert to fraction form
    11,806.88/16,299.76 = 9,148.32/x
  3. Step 3: Cross multiply
    11,806.88x = 16,299.76 × 9,148.32
  4. Step 4: Simplify right side
    11,806.88x = 149,115,420.40
  5. Step 5: Solve for x
    x = 149,115,420.40/11,806.88
  6. Step 6: Final answer
    x = 12,629.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.