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Finding the Fourth Proportional to 9,999.94, 14,983.49 and 3,422.54

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Solution

The fourth proportional to 9,999.94, 14,983.49 and 3,422.54 is: 5,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.94 : 14,983.49 = 3,422.54 : x
  2. Step 2: Convert to fraction form
    9,999.94/14,983.49 = 3,422.54/x
  3. Step 3: Cross multiply
    9,999.94x = 14,983.49 × 3,422.54
  4. Step 4: Simplify right side
    9,999.94x = 51,281,593.86
  5. Step 5: Solve for x
    x = 51,281,593.86/9,999.94
  6. Step 6: Final answer
    x = 5,128.19

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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.