Home / 13,313.40-19,970.10-3,452.60

Finding the Fourth Proportional to 13,313.40, 19,970.10 and 3,452.60

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Solution

The fourth proportional to 13,313.40, 19,970.10 and 3,452.60 is: 5,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.40 : 19,970.10 = 3,452.60 : x
  2. Step 2: Convert to fraction form
    13,313.40/19,970.10 = 3,452.60/x
  3. Step 3: Cross multiply
    13,313.40x = 19,970.10 × 3,452.60
  4. Step 4: Simplify right side
    13,313.40x = 68,948,767.26
  5. Step 5: Solve for x
    x = 68,948,767.26/13,313.40
  6. Step 6: Final answer
    x = 5,178.90

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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.