Home / 13,746.12-20,620.20-3,886.20

Finding the Fourth Proportional to 13,746.12, 20,620.20 and 3,886.20

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Solution

The fourth proportional to 13,746.12, 20,620.20 and 3,886.20 is: 5,829.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.12 : 20,620.20 = 3,886.20 : x
  2. Step 2: Convert to fraction form
    13,746.12/20,620.20 = 3,886.20/x
  3. Step 3: Cross multiply
    13,746.12x = 20,620.20 × 3,886.20
  4. Step 4: Simplify right side
    13,746.12x = 80,134,221.24
  5. Step 5: Solve for x
    x = 80,134,221.24/13,746.12
  6. Step 6: Final answer
    x = 5,829.59

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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.