Home / 9,780.46-14,672.21-3,539.81

Finding the Fourth Proportional to 9,780.46, 14,672.21 and 3,539.81

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Solution

The fourth proportional to 9,780.46, 14,672.21 and 3,539.81 is: 5,310.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.46 : 14,672.21 = 3,539.81 : x
  2. Step 2: Convert to fraction form
    9,780.46/14,672.21 = 3,539.81/x
  3. Step 3: Cross multiply
    9,780.46x = 14,672.21 × 3,539.81
  4. Step 4: Simplify right side
    9,780.46x = 51,936,835.68
  5. Step 5: Solve for x
    x = 51,936,835.68/9,780.46
  6. Step 6: Final answer
    x = 5,310.27

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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.