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Finding the Fourth Proportional to 11,303.18, 16,959.82 and 4,378.22

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Solution

The fourth proportional to 11,303.18, 16,959.82 and 4,378.22 is: 6,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,303.18 : 16,959.82 = 4,378.22 : x
  2. Step 2: Convert to fraction form
    11,303.18/16,959.82 = 4,378.22/x
  3. Step 3: Cross multiply
    11,303.18x = 16,959.82 × 4,378.22
  4. Step 4: Simplify right side
    11,303.18x = 74,253,823.12
  5. Step 5: Solve for x
    x = 74,253,823.12/11,303.18
  6. Step 6: Final answer
    x = 6,569.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.