Home / 26,645.60-39,968.40-9,115.56

Finding the Fourth Proportional to 26,645.60, 39,968.40 and 9,115.56

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Solution

The fourth proportional to 26,645.60, 39,968.40 and 9,115.56 is: 13,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,645.60 : 39,968.40 = 9,115.56 : x
  2. Step 2: Convert to fraction form
    26,645.60/39,968.40 = 9,115.56/x
  3. Step 3: Cross multiply
    26,645.60x = 39,968.40 × 9,115.56
  4. Step 4: Simplify right side
    26,645.60x = 364,334,348.30
  5. Step 5: Solve for x
    x = 364,334,348.30/26,645.60
  6. Step 6: Final answer
    x = 13,673.34

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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.