Home / 13,553.43-20,328.09-3,693.50

Finding the Fourth Proportional to 13,553.43, 20,328.09 and 3,693.50

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Solution

The fourth proportional to 13,553.43, 20,328.09 and 3,693.50 is: 5,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.43 : 20,328.09 = 3,693.50 : x
  2. Step 2: Convert to fraction form
    13,553.43/20,328.09 = 3,693.50/x
  3. Step 3: Cross multiply
    13,553.43x = 20,328.09 × 3,693.50
  4. Step 4: Simplify right side
    13,553.43x = 75,081,698.77
  5. Step 5: Solve for x
    x = 75,081,698.77/13,553.43
  6. Step 6: Final answer
    x = 5,539.68

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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.