Home / 10,756.80-16,135.20-2,965.61

Finding the Fourth Proportional to 10,756.80, 16,135.20 and 2,965.61

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Solution

The fourth proportional to 10,756.80, 16,135.20 and 2,965.61 is: 4,448.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,756.80 : 16,135.20 = 2,965.61 : x
  2. Step 2: Convert to fraction form
    10,756.80/16,135.20 = 2,965.61/x
  3. Step 3: Cross multiply
    10,756.80x = 16,135.20 × 2,965.61
  4. Step 4: Simplify right side
    10,756.80x = 47,850,750.81
  5. Step 5: Solve for x
    x = 47,850,750.81/10,756.80
  6. Step 6: Final answer
    x = 4,448.42

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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.