Home / 13,440.94-18,545.79-7,850.86

Finding the Fourth Proportional to 13,440.94, 18,545.79 and 7,850.86

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Solution

The fourth proportional to 13,440.94, 18,545.79 and 7,850.86 is: 10,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.94 : 18,545.79 = 7,850.86 : x
  2. Step 2: Convert to fraction form
    13,440.94/18,545.79 = 7,850.86/x
  3. Step 3: Cross multiply
    13,440.94x = 18,545.79 × 7,850.86
  4. Step 4: Simplify right side
    13,440.94x = 145,600,400.88
  5. Step 5: Solve for x
    x = 145,600,400.88/13,440.94
  6. Step 6: Final answer
    x = 10,832.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.