Home / 13,555.98-20,330.82-3,693.29

Finding the Fourth Proportional to 13,555.98, 20,330.82 and 3,693.29

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Solution

The fourth proportional to 13,555.98, 20,330.82 and 3,693.29 is: 5,539.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.98 : 20,330.82 = 3,693.29 : x
  2. Step 2: Convert to fraction form
    13,555.98/20,330.82 = 3,693.29/x
  3. Step 3: Cross multiply
    13,555.98x = 20,330.82 × 3,693.29
  4. Step 4: Simplify right side
    13,555.98x = 75,087,512.54
  5. Step 5: Solve for x
    x = 75,087,512.54/13,555.98
  6. Step 6: Final answer
    x = 5,539.07

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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.