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Finding the Fourth Proportional to 9,992.45, 14,997.78 and 4,444.76

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Solution

The fourth proportional to 9,992.45, 14,997.78 and 4,444.76 is: 6,671.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.45 : 14,997.78 = 4,444.76 : x
  2. Step 2: Convert to fraction form
    9,992.45/14,997.78 = 4,444.76/x
  3. Step 3: Cross multiply
    9,992.45x = 14,997.78 × 4,444.76
  4. Step 4: Simplify right side
    9,992.45x = 66,661,457.64
  5. Step 5: Solve for x
    x = 66,661,457.64/9,992.45
  6. Step 6: Final answer
    x = 6,671.19

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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.