Home / 10,928.39-16,400.48-4,350.78

Finding the Fourth Proportional to 10,928.39, 16,400.48 and 4,350.78

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Solution

The fourth proportional to 10,928.39, 16,400.48 and 4,350.78 is: 6,529.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.39 : 16,400.48 = 4,350.78 : x
  2. Step 2: Convert to fraction form
    10,928.39/16,400.48 = 4,350.78/x
  3. Step 3: Cross multiply
    10,928.39x = 16,400.48 × 4,350.78
  4. Step 4: Simplify right side
    10,928.39x = 71,354,858.62
  5. Step 5: Solve for x
    x = 71,354,858.62/10,928.39
  6. Step 6: Final answer
    x = 6,529.31

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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.