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Finding the Fourth Proportional to 8,922.33, 12,312.32 and 4,943.21

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Solution

The fourth proportional to 8,922.33, 12,312.32 and 4,943.21 is: 6,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.33 : 12,312.32 = 4,943.21 : x
  2. Step 2: Convert to fraction form
    8,922.33/12,312.32 = 4,943.21/x
  3. Step 3: Cross multiply
    8,922.33x = 12,312.32 × 4,943.21
  4. Step 4: Simplify right side
    8,922.33x = 60,862,297.07
  5. Step 5: Solve for x
    x = 60,862,297.07/8,922.33
  6. Step 6: Final answer
    x = 6,821.35

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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.