Home / 13,746.12-20,609.08-4,380.75

Finding the Fourth Proportional to 13,746.12, 20,609.08 and 4,380.75

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Solution

The fourth proportional to 13,746.12, 20,609.08 and 4,380.75 is: 6,567.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.12 : 20,609.08 = 4,380.75 : x
  2. Step 2: Convert to fraction form
    13,746.12/20,609.08 = 4,380.75/x
  3. Step 3: Cross multiply
    13,746.12x = 20,609.08 × 4,380.75
  4. Step 4: Simplify right side
    13,746.12x = 90,283,175.69
  5. Step 5: Solve for x
    x = 90,283,175.69/13,746.12
  6. Step 6: Final answer
    x = 6,567.90

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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.