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Finding the Fourth Proportional to 9,158.97, 12,639.45 and 4,967.22

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Solution

The fourth proportional to 9,158.97, 12,639.45 and 4,967.22 is: 6,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158.97 : 12,639.45 = 4,967.22 : x
  2. Step 2: Convert to fraction form
    9,158.97/12,639.45 = 4,967.22/x
  3. Step 3: Cross multiply
    9,158.97x = 12,639.45 × 4,967.22
  4. Step 4: Simplify right side
    9,158.97x = 62,782,928.83
  5. Step 5: Solve for x
    x = 62,782,928.83/9,158.97
  6. Step 6: Final answer
    x = 6,854.80

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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.