Home / 13,310.57-19,962.44-3,948.40

Finding the Fourth Proportional to 13,310.57, 19,962.44 and 3,948.40

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Solution

The fourth proportional to 13,310.57, 19,962.44 and 3,948.40 is: 5,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.57 : 19,962.44 = 3,948.40 : x
  2. Step 2: Convert to fraction form
    13,310.57/19,962.44 = 3,948.40/x
  3. Step 3: Cross multiply
    13,310.57x = 19,962.44 × 3,948.40
  4. Step 4: Simplify right side
    13,310.57x = 78,819,698.10
  5. Step 5: Solve for x
    x = 78,819,698.10/13,310.57
  6. Step 6: Final answer
    x = 5,921.59

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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.