Home / 26,638.32-39,964.56-9,109.92

Finding the Fourth Proportional to 26,638.32, 39,964.56 and 9,109.92

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Solution

The fourth proportional to 26,638.32, 39,964.56 and 9,109.92 is: 13,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,638.32 : 39,964.56 = 9,109.92 : x
  2. Step 2: Convert to fraction form
    26,638.32/39,964.56 = 9,109.92/x
  3. Step 3: Cross multiply
    26,638.32x = 39,964.56 × 9,109.92
  4. Step 4: Simplify right side
    26,638.32x = 364,073,944.44
  5. Step 5: Solve for x
    x = 364,073,944.44/26,638.32
  6. Step 6: Final answer
    x = 13,667.30

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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.