Home / 26,412.80-39,609.60-8,883.20

Finding the Fourth Proportional to 26,412.80, 39,609.60 and 8,883.20

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Solution

The fourth proportional to 26,412.80, 39,609.60 and 8,883.20 is: 13,321.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,412.80 : 39,609.60 = 8,883.20 : x
  2. Step 2: Convert to fraction form
    26,412.80/39,609.60 = 8,883.20/x
  3. Step 3: Cross multiply
    26,412.80x = 39,609.60 × 8,883.20
  4. Step 4: Simplify right side
    26,412.80x = 351,859,998.72
  5. Step 5: Solve for x
    x = 351,859,998.72/26,412.80
  6. Step 6: Final answer
    x = 13,321.57

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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.