Home / 11,804.48-16,290.64-6,499.78

Finding the Fourth Proportional to 11,804.48, 16,290.64 and 6,499.78

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Solution

The fourth proportional to 11,804.48, 16,290.64 and 6,499.78 is: 8,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,804.48 : 16,290.64 = 6,499.78 : x
  2. Step 2: Convert to fraction form
    11,804.48/16,290.64 = 6,499.78/x
  3. Step 3: Cross multiply
    11,804.48x = 16,290.64 × 6,499.78
  4. Step 4: Simplify right side
    11,804.48x = 105,885,576.06
  5. Step 5: Solve for x
    x = 105,885,576.06/11,804.48
  6. Step 6: Final answer
    x = 8,969.95

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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.