Home / 10,354.35-15,531.81-3,785.43

Finding the Fourth Proportional to 10,354.35, 15,531.81 and 3,785.43

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Solution

The fourth proportional to 10,354.35, 15,531.81 and 3,785.43 is: 5,678.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.35 : 15,531.81 = 3,785.43 : x
  2. Step 2: Convert to fraction form
    10,354.35/15,531.81 = 3,785.43/x
  3. Step 3: Cross multiply
    10,354.35x = 15,531.81 × 3,785.43
  4. Step 4: Simplify right side
    10,354.35x = 58,794,579.53
  5. Step 5: Solve for x
    x = 58,794,579.53/10,354.35
  6. Step 6: Final answer
    x = 5,678.25

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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.