Home / 12,404.67-18,609.63-3,638.85

Finding the Fourth Proportional to 12,404.67, 18,609.63 and 3,638.85

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Solution

The fourth proportional to 12,404.67, 18,609.63 and 3,638.85 is: 5,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.67 : 18,609.63 = 3,638.85 : x
  2. Step 2: Convert to fraction form
    12,404.67/18,609.63 = 3,638.85/x
  3. Step 3: Cross multiply
    12,404.67x = 18,609.63 × 3,638.85
  4. Step 4: Simplify right side
    12,404.67x = 67,717,652.13
  5. Step 5: Solve for x
    x = 67,717,652.13/12,404.67
  6. Step 6: Final answer
    x = 5,459.05

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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.