Home / 26,212.60-39,310.16-8,439.09

Finding the Fourth Proportional to 26,212.60, 39,310.16 and 8,439.09

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Solution

The fourth proportional to 26,212.60, 39,310.16 and 8,439.09 is: 12,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,212.60 : 39,310.16 = 8,439.09 : x
  2. Step 2: Convert to fraction form
    26,212.60/39,310.16 = 8,439.09/x
  3. Step 3: Cross multiply
    26,212.60x = 39,310.16 × 8,439.09
  4. Step 4: Simplify right side
    26,212.60x = 331,742,167.70
  5. Step 5: Solve for x
    x = 331,742,167.70/26,212.60
  6. Step 6: Final answer
    x = 12,655.83

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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.