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Finding the Fourth Proportional to 26,636.57, 39,944.48 and 9,987.51

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Solution

The fourth proportional to 26,636.57, 39,944.48 and 9,987.51 is: 14,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,636.57 : 39,944.48 = 9,987.51 : x
  2. Step 2: Convert to fraction form
    26,636.57/39,944.48 = 9,987.51/x
  3. Step 3: Cross multiply
    26,636.57x = 39,944.48 × 9,987.51
  4. Step 4: Simplify right side
    26,636.57x = 398,945,843.51
  5. Step 5: Solve for x
    x = 398,945,843.51/26,636.57
  6. Step 6: Final answer
    x = 14,977.38

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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.