Home / 10,489.21-15,730.30-3,562.09

Finding the Fourth Proportional to 10,489.21, 15,730.30 and 3,562.09

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Solution

The fourth proportional to 10,489.21, 15,730.30 and 3,562.09 is: 5,341.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.21 : 15,730.30 = 3,562.09 : x
  2. Step 2: Convert to fraction form
    10,489.21/15,730.30 = 3,562.09/x
  3. Step 3: Cross multiply
    10,489.21x = 15,730.30 × 3,562.09
  4. Step 4: Simplify right side
    10,489.21x = 56,032,744.33
  5. Step 5: Solve for x
    x = 56,032,744.33/10,489.21
  6. Step 6: Final answer
    x = 5,341.94

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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.