Home / 26,636.80-39,955.20-9,107.20

Finding the Fourth Proportional to 26,636.80, 39,955.20 and 9,107.20

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Solution

The fourth proportional to 26,636.80, 39,955.20 and 9,107.20 is: 13,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,636.80 : 39,955.20 = 9,107.20 : x
  2. Step 2: Convert to fraction form
    26,636.80/39,955.20 = 9,107.20/x
  3. Step 3: Cross multiply
    26,636.80x = 39,955.20 × 9,107.20
  4. Step 4: Simplify right side
    26,636.80x = 363,879,997.44
  5. Step 5: Solve for x
    x = 363,879,997.44/26,636.80
  6. Step 6: Final answer
    x = 13,660.80

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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.