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Finding the Fourth Proportional to 8,999.12, 13,501.02 and 2,843.12

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Solution

The fourth proportional to 8,999.12, 13,501.02 and 2,843.12 is: 4,265.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.12 : 13,501.02 = 2,843.12 : x
  2. Step 2: Convert to fraction form
    8,999.12/13,501.02 = 2,843.12/x
  3. Step 3: Cross multiply
    8,999.12x = 13,501.02 × 2,843.12
  4. Step 4: Simplify right side
    8,999.12x = 38,385,019.98
  5. Step 5: Solve for x
    x = 38,385,019.98/8,999.12
  6. Step 6: Final answer
    x = 4,265.42

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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.