Home / 10,933.20-16,399.80-5,101.20

Finding the Fourth Proportional to 10,933.20, 16,399.80 and 5,101.20

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Solution

The fourth proportional to 10,933.20, 16,399.80 and 5,101.20 is: 7,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,933.20 : 16,399.80 = 5,101.20 : x
  2. Step 2: Convert to fraction form
    10,933.20/16,399.80 = 5,101.20/x
  3. Step 3: Cross multiply
    10,933.20x = 16,399.80 × 5,101.20
  4. Step 4: Simplify right side
    10,933.20x = 83,658,659.76
  5. Step 5: Solve for x
    x = 83,658,659.76/10,933.20
  6. Step 6: Final answer
    x = 7,651.80

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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.