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Finding the Fourth Proportional to 9,663.30, 14,454.90 and 9,072.90

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Solution

The fourth proportional to 9,663.30, 14,454.90 and 9,072.90 is: 13,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,663.30 : 14,454.90 = 9,072.90 : x
  2. Step 2: Convert to fraction form
    9,663.30/14,454.90 = 9,072.90/x
  3. Step 3: Cross multiply
    9,663.30x = 14,454.90 × 9,072.90
  4. Step 4: Simplify right side
    9,663.30x = 131,147,862.21
  5. Step 5: Solve for x
    x = 131,147,862.21/9,663.30
  6. Step 6: Final answer
    x = 13,571.75

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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.