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Finding the Fourth Proportional to 10,999.50, 16,499.25 and 4,843.50

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Solution

The fourth proportional to 10,999.50, 16,499.25 and 4,843.50 is: 7,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.50 : 16,499.25 = 4,843.50 : x
  2. Step 2: Convert to fraction form
    10,999.50/16,499.25 = 4,843.50/x
  3. Step 3: Cross multiply
    10,999.50x = 16,499.25 × 4,843.50
  4. Step 4: Simplify right side
    10,999.50x = 79,914,117.38
  5. Step 5: Solve for x
    x = 79,914,117.38/10,999.50
  6. Step 6: Final answer
    x = 7,265.25

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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.