Home / 11,276.58-16,902.99-5,420.82

Finding the Fourth Proportional to 11,276.58, 16,902.99 and 5,420.82

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Solution

The fourth proportional to 11,276.58, 16,902.99 and 5,420.82 is: 8,125.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.58 : 16,902.99 = 5,420.82 : x
  2. Step 2: Convert to fraction form
    11,276.58/16,902.99 = 5,420.82/x
  3. Step 3: Cross multiply
    11,276.58x = 16,902.99 × 5,420.82
  4. Step 4: Simplify right side
    11,276.58x = 91,628,066.25
  5. Step 5: Solve for x
    x = 91,628,066.25/11,276.58
  6. Step 6: Final answer
    x = 8,125.52

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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.