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Finding the Fourth Proportional to 12,045.61, 16,622.99 and 6,740.43

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Solution

The fourth proportional to 12,045.61, 16,622.99 and 6,740.43 is: 9,301.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.61 : 16,622.99 = 6,740.43 : x
  2. Step 2: Convert to fraction form
    12,045.61/16,622.99 = 6,740.43/x
  3. Step 3: Cross multiply
    12,045.61x = 16,622.99 × 6,740.43
  4. Step 4: Simplify right side
    12,045.61x = 112,046,100.49
  5. Step 5: Solve for x
    x = 112,046,100.49/12,045.61
  6. Step 6: Final answer
    x = 9,301.82

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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.