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Finding the Fourth Proportional to 9,999.97, 15,000.50 and 2,604.45

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Solution

The fourth proportional to 9,999.97, 15,000.50 and 2,604.45 is: 3,906.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.97 : 15,000.50 = 2,604.45 : x
  2. Step 2: Convert to fraction form
    9,999.97/15,000.50 = 2,604.45/x
  3. Step 3: Cross multiply
    9,999.97x = 15,000.50 × 2,604.45
  4. Step 4: Simplify right side
    9,999.97x = 39,068,052.23
  5. Step 5: Solve for x
    x = 39,068,052.23/9,999.97
  6. Step 6: Final answer
    x = 3,906.82

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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.