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Finding the Fourth Proportional to 16,864.81, 23,272.42 and 9,310.95

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Solution

The fourth proportional to 16,864.81, 23,272.42 and 9,310.95 is: 12,848.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,864.81 : 23,272.42 = 9,310.95 : x
  2. Step 2: Convert to fraction form
    16,864.81/23,272.42 = 9,310.95/x
  3. Step 3: Cross multiply
    16,864.81x = 23,272.42 × 9,310.95
  4. Step 4: Simplify right side
    16,864.81x = 216,688,339.00
  5. Step 5: Solve for x
    x = 216,688,339.00/16,864.81
  6. Step 6: Final answer
    x = 12,848.55

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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.