Home / 8,429.60-12,645.77-3,165.03

Finding the Fourth Proportional to 8,429.60, 12,645.77 and 3,165.03

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Solution

The fourth proportional to 8,429.60, 12,645.77 and 3,165.03 is: 4,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.60 : 12,645.77 = 3,165.03 : x
  2. Step 2: Convert to fraction form
    8,429.60/12,645.77 = 3,165.03/x
  3. Step 3: Cross multiply
    8,429.60x = 12,645.77 × 3,165.03
  4. Step 4: Simplify right side
    8,429.60x = 40,024,201.91
  5. Step 5: Solve for x
    x = 40,024,201.91/8,429.60
  6. Step 6: Final answer
    x = 4,748.05

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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.