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Finding the Fourth Proportional to 9,097, 13,541.33 and 8,672.20

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Solution

The fourth proportional to 9,097, 13,541.33 and 8,672.20 is: 12,908.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,097 : 13,541.33 = 8,672.20 : x
  2. Step 2: Convert to fraction form
    9,097/13,541.33 = 8,672.20/x
  3. Step 3: Cross multiply
    9,097x = 13,541.33 × 8,672.20
  4. Step 4: Simplify right side
    9,097x = 117,433,122.03
  5. Step 5: Solve for x
    x = 117,433,122.03/9,097
  6. Step 6: Final answer
    x = 12,908.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.