Home / 12,440.96-18,663.60-3,676.40

Finding the Fourth Proportional to 12,440.96, 18,663.60 and 3,676.40

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Solution

The fourth proportional to 12,440.96, 18,663.60 and 3,676.40 is: 5,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.96 : 18,663.60 = 3,676.40 : x
  2. Step 2: Convert to fraction form
    12,440.96/18,663.60 = 3,676.40/x
  3. Step 3: Cross multiply
    12,440.96x = 18,663.60 × 3,676.40
  4. Step 4: Simplify right side
    12,440.96x = 68,614,859.04
  5. Step 5: Solve for x
    x = 68,614,859.04/12,440.96
  6. Step 6: Final answer
    x = 5,515.24

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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.