Home / 8,135.72-12,196.38-3,973.40

Finding the Fourth Proportional to 8,135.72, 12,196.38 and 3,973.40

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Solution

The fourth proportional to 8,135.72, 12,196.38 and 3,973.40 is: 5,956.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.72 : 12,196.38 = 3,973.40 : x
  2. Step 2: Convert to fraction form
    8,135.72/12,196.38 = 3,973.40/x
  3. Step 3: Cross multiply
    8,135.72x = 12,196.38 × 3,973.40
  4. Step 4: Simplify right side
    8,135.72x = 48,461,096.29
  5. Step 5: Solve for x
    x = 48,461,096.29/8,135.72
  6. Step 6: Final answer
    x = 5,956.58

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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.