Home / 10,943.86-16,400.67-9,479.38

Finding the Fourth Proportional to 10,943.86, 16,400.67 and 9,479.38

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Solution

The fourth proportional to 10,943.86, 16,400.67 and 9,479.38 is: 14,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,943.86 : 16,400.67 = 9,479.38 : x
  2. Step 2: Convert to fraction form
    10,943.86/16,400.67 = 9,479.38/x
  3. Step 3: Cross multiply
    10,943.86x = 16,400.67 × 9,479.38
  4. Step 4: Simplify right side
    10,943.86x = 155,468,183.18
  5. Step 5: Solve for x
    x = 155,468,183.18/10,943.86
  6. Step 6: Final answer
    x = 14,205.97

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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.