Home / 13,746.32-20,615.60-6,722.54

Finding the Fourth Proportional to 13,746.32, 20,615.60 and 6,722.54

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Solution

The fourth proportional to 13,746.32, 20,615.60 and 6,722.54 is: 10,081.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.32 : 20,615.60 = 6,722.54 : x
  2. Step 2: Convert to fraction form
    13,746.32/20,615.60 = 6,722.54/x
  3. Step 3: Cross multiply
    13,746.32x = 20,615.60 × 6,722.54
  4. Step 4: Simplify right side
    13,746.32x = 138,589,109.35
  5. Step 5: Solve for x
    x = 138,589,109.35/13,746.32
  6. Step 6: Final answer
    x = 10,081.91

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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.