Home / 13,558.92-20,377.26-6,638.28

Finding the Fourth Proportional to 13,558.92, 20,377.26 and 6,638.28

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Solution

The fourth proportional to 13,558.92, 20,377.26 and 6,638.28 is: 9,976.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.92 : 20,377.26 = 6,638.28 : x
  2. Step 2: Convert to fraction form
    13,558.92/20,377.26 = 6,638.28/x
  3. Step 3: Cross multiply
    13,558.92x = 20,377.26 × 6,638.28
  4. Step 4: Simplify right side
    13,558.92x = 135,269,957.51
  5. Step 5: Solve for x
    x = 135,269,957.51/13,558.92
  6. Step 6: Final answer
    x = 9,976.46

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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.