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Finding the Fourth Proportional to 9,180.51, 12,668.95 and 5,403.23

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Solution

The fourth proportional to 9,180.51, 12,668.95 and 5,403.23 is: 7,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,180.51 : 12,668.95 = 5,403.23 : x
  2. Step 2: Convert to fraction form
    9,180.51/12,668.95 = 5,403.23/x
  3. Step 3: Cross multiply
    9,180.51x = 12,668.95 × 5,403.23
  4. Step 4: Simplify right side
    9,180.51x = 68,453,160.35
  5. Step 5: Solve for x
    x = 68,453,160.35/9,180.51
  6. Step 6: Final answer
    x = 7,456.36

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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.