Home / 26,630.72-39,939.20-7,906.32

Finding the Fourth Proportional to 26,630.72, 39,939.20 and 7,906.32

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Solution

The fourth proportional to 26,630.72, 39,939.20 and 7,906.32 is: 11,857.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,630.72 : 39,939.20 = 7,906.32 : x
  2. Step 2: Convert to fraction form
    26,630.72/39,939.20 = 7,906.32/x
  3. Step 3: Cross multiply
    26,630.72x = 39,939.20 × 7,906.32
  4. Step 4: Simplify right side
    26,630.72x = 315,772,095.74
  5. Step 5: Solve for x
    x = 315,772,095.74/26,630.72
  6. Step 6: Final answer
    x = 11,857.44

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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.