Home / 26,278.69-39,423.97-8,749.21

Finding the Fourth Proportional to 26,278.69, 39,423.97 and 8,749.21

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Solution

The fourth proportional to 26,278.69, 39,423.97 and 8,749.21 is: 13,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,278.69 : 39,423.97 = 8,749.21 : x
  2. Step 2: Convert to fraction form
    26,278.69/39,423.97 = 8,749.21/x
  3. Step 3: Cross multiply
    26,278.69x = 39,423.97 × 8,749.21
  4. Step 4: Simplify right side
    26,278.69x = 344,928,395.44
  5. Step 5: Solve for x
    x = 344,928,395.44/26,278.69
  6. Step 6: Final answer
    x = 13,125.79

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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.