Home / 13,765.60-20,648.40-3,377.26

Finding the Fourth Proportional to 13,765.60, 20,648.40 and 3,377.26

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Solution

The fourth proportional to 13,765.60, 20,648.40 and 3,377.26 is: 5,065.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.60 : 20,648.40 = 3,377.26 : x
  2. Step 2: Convert to fraction form
    13,765.60/20,648.40 = 3,377.26/x
  3. Step 3: Cross multiply
    13,765.60x = 20,648.40 × 3,377.26
  4. Step 4: Simplify right side
    13,765.60x = 69,735,015.38
  5. Step 5: Solve for x
    x = 69,735,015.38/13,765.60
  6. Step 6: Final answer
    x = 5,065.89

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1.5x scale

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.