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Finding the Fourth Proportional to 8,900.58, 12,282.74 and 4,921.97

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Solution

The fourth proportional to 8,900.58, 12,282.74 and 4,921.97 is: 6,792.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.58 : 12,282.74 = 4,921.97 : x
  2. Step 2: Convert to fraction form
    8,900.58/12,282.74 = 4,921.97/x
  3. Step 3: Cross multiply
    8,900.58x = 12,282.74 × 4,921.97
  4. Step 4: Simplify right side
    8,900.58x = 60,455,210.23
  5. Step 5: Solve for x
    x = 60,455,210.23/8,900.58
  6. Step 6: Final answer
    x = 6,792.27

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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.