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Finding the Fourth Proportional to 11,316.52, 16,976.66 and 4,743.20

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Solution

The fourth proportional to 11,316.52, 16,976.66 and 4,743.20 is: 7,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.52 : 16,976.66 = 4,743.20 : x
  2. Step 2: Convert to fraction form
    11,316.52/16,976.66 = 4,743.20/x
  3. Step 3: Cross multiply
    11,316.52x = 16,976.66 × 4,743.20
  4. Step 4: Simplify right side
    11,316.52x = 80,523,693.71
  5. Step 5: Solve for x
    x = 80,523,693.71/11,316.52
  6. Step 6: Final answer
    x = 7,115.59

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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.