Home / 14,628.80-21,945-4,765.43

Finding the Fourth Proportional to 14,628.80, 21,945 and 4,765.43

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Solution

The fourth proportional to 14,628.80, 21,945 and 4,765.43 is: 7,148.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,628.80 : 21,945 = 4,765.43 : x
  2. Step 2: Convert to fraction form
    14,628.80/21,945 = 4,765.43/x
  3. Step 3: Cross multiply
    14,628.80x = 21,945 × 4,765.43
  4. Step 4: Simplify right side
    14,628.80x = 104,577,361.35
  5. Step 5: Solve for x
    x = 104,577,361.35/14,628.80
  6. Step 6: Final answer
    x = 7,148.73

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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.