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Finding the Fourth Proportional to 9,279.01, 12,805.20 and 5,086.99

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Solution

The fourth proportional to 9,279.01, 12,805.20 and 5,086.99 is: 7,020.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.01 : 12,805.20 = 5,086.99 : x
  2. Step 2: Convert to fraction form
    9,279.01/12,805.20 = 5,086.99/x
  3. Step 3: Cross multiply
    9,279.01x = 12,805.20 × 5,086.99
  4. Step 4: Simplify right side
    9,279.01x = 65,139,924.35
  5. Step 5: Solve for x
    x = 65,139,924.35/9,279.01
  6. Step 6: Final answer
    x = 7,020.14

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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.