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Finding the Fourth Proportional to 9,345.57, 12,892.99 and 5,987.67

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Solution

The fourth proportional to 9,345.57, 12,892.99 and 5,987.67 is: 8,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.57 : 12,892.99 = 5,987.67 : x
  2. Step 2: Convert to fraction form
    9,345.57/12,892.99 = 5,987.67/x
  3. Step 3: Cross multiply
    9,345.57x = 12,892.99 × 5,987.67
  4. Step 4: Simplify right side
    9,345.57x = 77,198,969.43
  5. Step 5: Solve for x
    x = 77,198,969.43/9,345.57
  6. Step 6: Final answer
    x = 8,260.49

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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.