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Finding the Fourth Proportional to 11,376.30, 17,064.45 and 10,728.30

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Solution

The fourth proportional to 11,376.30, 17,064.45 and 10,728.30 is: 16,092.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.30 : 17,064.45 = 10,728.30 : x
  2. Step 2: Convert to fraction form
    11,376.30/17,064.45 = 10,728.30/x
  3. Step 3: Cross multiply
    11,376.30x = 17,064.45 × 10,728.30
  4. Step 4: Simplify right side
    11,376.30x = 183,072,538.94
  5. Step 5: Solve for x
    x = 183,072,538.94/11,376.30
  6. Step 6: Final answer
    x = 16,092.45

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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.