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Finding the Fourth Proportional to 11,605.41, 17,391.11 and 7,209.54

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Solution

The fourth proportional to 11,605.41, 17,391.11 and 7,209.54 is: 10,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,605.41 : 17,391.11 = 7,209.54 : x
  2. Step 2: Convert to fraction form
    11,605.41/17,391.11 = 7,209.54/x
  3. Step 3: Cross multiply
    11,605.41x = 17,391.11 × 7,209.54
  4. Step 4: Simplify right side
    11,605.41x = 125,381,867.14
  5. Step 5: Solve for x
    x = 125,381,867.14/11,605.41
  6. Step 6: Final answer
    x = 10,803.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.