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Finding the Fourth Proportional to 12,240.10, 16,891.28 and 7,204.28

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Solution

The fourth proportional to 12,240.10, 16,891.28 and 7,204.28 is: 9,941.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.10 : 16,891.28 = 7,204.28 : x
  2. Step 2: Convert to fraction form
    12,240.10/16,891.28 = 7,204.28/x
  3. Step 3: Cross multiply
    12,240.10x = 16,891.28 × 7,204.28
  4. Step 4: Simplify right side
    12,240.10x = 121,689,510.68
  5. Step 5: Solve for x
    x = 121,689,510.68/12,240.10
  6. Step 6: Final answer
    x = 9,941.87

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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.