Home / 26,680.10-40,025.87-7,961.61

Finding the Fourth Proportional to 26,680.10, 40,025.87 and 7,961.61

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Solution

The fourth proportional to 26,680.10, 40,025.87 and 7,961.61 is: 11,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,680.10 : 40,025.87 = 7,961.61 : x
  2. Step 2: Convert to fraction form
    26,680.10/40,025.87 = 7,961.61/x
  3. Step 3: Cross multiply
    26,680.10x = 40,025.87 × 7,961.61
  4. Step 4: Simplify right side
    26,680.10x = 318,670,386.75
  5. Step 5: Solve for x
    x = 318,670,386.75/26,680.10
  6. Step 6: Final answer
    x = 11,944.12

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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.