Home / 11,967.18-16,515.29-6,661.88

Finding the Fourth Proportional to 11,967.18, 16,515.29 and 6,661.88

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Solution

The fourth proportional to 11,967.18, 16,515.29 and 6,661.88 is: 9,193.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,967.18 : 16,515.29 = 6,661.88 : x
  2. Step 2: Convert to fraction form
    11,967.18/16,515.29 = 6,661.88/x
  3. Step 3: Cross multiply
    11,967.18x = 16,515.29 × 6,661.88
  4. Step 4: Simplify right side
    11,967.18x = 110,022,876.16
  5. Step 5: Solve for x
    x = 110,022,876.16/11,967.18
  6. Step 6: Final answer
    x = 9,193.72

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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.