Home / 13,579.03-20,378.67-7,004.26

Finding the Fourth Proportional to 13,579.03, 20,378.67 and 7,004.26

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Solution

The fourth proportional to 13,579.03, 20,378.67 and 7,004.26 is: 10,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.03 : 20,378.67 = 7,004.26 : x
  2. Step 2: Convert to fraction form
    13,579.03/20,378.67 = 7,004.26/x
  3. Step 3: Cross multiply
    13,579.03x = 20,378.67 × 7,004.26
  4. Step 4: Simplify right side
    13,579.03x = 142,737,503.13
  5. Step 5: Solve for x
    x = 142,737,503.13/13,579.03
  6. Step 6: Final answer
    x = 10,511.61

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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.