Home / 11,711.06-16,160.96-6,405.53

Finding the Fourth Proportional to 11,711.06, 16,160.96 and 6,405.53

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Solution

The fourth proportional to 11,711.06, 16,160.96 and 6,405.53 is: 8,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.06 : 16,160.96 = 6,405.53 : x
  2. Step 2: Convert to fraction form
    11,711.06/16,160.96 = 6,405.53/x
  3. Step 3: Cross multiply
    11,711.06x = 16,160.96 × 6,405.53
  4. Step 4: Simplify right side
    11,711.06x = 103,519,514.11
  5. Step 5: Solve for x
    x = 103,519,514.11/11,711.06
  6. Step 6: Final answer
    x = 8,839.47

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