Home / 10,855.60-16,284.56-3,458.32

Finding the Fourth Proportional to 10,855.60, 16,284.56 and 3,458.32

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Solution

The fourth proportional to 10,855.60, 16,284.56 and 3,458.32 is: 5,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.60 : 16,284.56 = 3,458.32 : x
  2. Step 2: Convert to fraction form
    10,855.60/16,284.56 = 3,458.32/x
  3. Step 3: Cross multiply
    10,855.60x = 16,284.56 × 3,458.32
  4. Step 4: Simplify right side
    10,855.60x = 56,317,161.54
  5. Step 5: Solve for x
    x = 56,317,161.54/10,855.60
  6. Step 6: Final answer
    x = 5,187.85

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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.