Home / 10,933.80-16,379.10-6,538.20

Finding the Fourth Proportional to 10,933.80, 16,379.10 and 6,538.20

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Solution

The fourth proportional to 10,933.80, 16,379.10 and 6,538.20 is: 9,794.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.80 : 16,379.10 = 6,538.20 : x
  2. Step 2: Convert to fraction form
    10,933.80/16,379.10 = 6,538.20/x
  3. Step 3: Cross multiply
    10,933.80x = 16,379.10 × 6,538.20
  4. Step 4: Simplify right side
    10,933.80x = 107,089,831.62
  5. Step 5: Solve for x
    x = 107,089,831.62/10,933.80
  6. Step 6: Final answer
    x = 9,794.38

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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.