Home / 10,820.94-16,231.42-4,981.64

Finding the Fourth Proportional to 10,820.94, 16,231.42 and 4,981.64

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Solution

The fourth proportional to 10,820.94, 16,231.42 and 4,981.64 is: 7,472.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.94 : 16,231.42 = 4,981.64 : x
  2. Step 2: Convert to fraction form
    10,820.94/16,231.42 = 4,981.64/x
  3. Step 3: Cross multiply
    10,820.94x = 16,231.42 × 4,981.64
  4. Step 4: Simplify right side
    10,820.94x = 80,859,091.13
  5. Step 5: Solve for x
    x = 80,859,091.13/10,820.94
  6. Step 6: Final answer
    x = 7,472.46

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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.