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Finding the Fourth Proportional to 8,954.86, 12,357.48 and 4,976.32

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Solution

The fourth proportional to 8,954.86, 12,357.48 and 4,976.32 is: 6,867.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.86 : 12,357.48 = 4,976.32 : x
  2. Step 2: Convert to fraction form
    8,954.86/12,357.48 = 4,976.32/x
  3. Step 3: Cross multiply
    8,954.86x = 12,357.48 × 4,976.32
  4. Step 4: Simplify right side
    8,954.86x = 61,494,774.87
  5. Step 5: Solve for x
    x = 61,494,774.87/8,954.86
  6. Step 6: Final answer
    x = 6,867.20

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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.