Home / 10,728.84-16,091.70-5,461.68

Finding the Fourth Proportional to 10,728.84, 16,091.70 and 5,461.68

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Solution

The fourth proportional to 10,728.84, 16,091.70 and 5,461.68 is: 8,191.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.84 : 16,091.70 = 5,461.68 : x
  2. Step 2: Convert to fraction form
    10,728.84/16,091.70 = 5,461.68/x
  3. Step 3: Cross multiply
    10,728.84x = 16,091.70 × 5,461.68
  4. Step 4: Simplify right side
    10,728.84x = 87,887,716.06
  5. Step 5: Solve for x
    x = 87,887,716.06/10,728.84
  6. Step 6: Final answer
    x = 8,191.73

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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.