Home / 26,109.38-39,152.43-8,336.78

Finding the Fourth Proportional to 26,109.38, 39,152.43 and 8,336.78

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Solution

The fourth proportional to 26,109.38, 39,152.43 and 8,336.78 is: 12,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,109.38 : 39,152.43 = 8,336.78 : x
  2. Step 2: Convert to fraction form
    26,109.38/39,152.43 = 8,336.78/x
  3. Step 3: Cross multiply
    26,109.38x = 39,152.43 × 8,336.78
  4. Step 4: Simplify right side
    26,109.38x = 326,405,195.38
  5. Step 5: Solve for x
    x = 326,405,195.38/26,109.38
  6. Step 6: Final answer
    x = 12,501.45

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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.