Home / 17,857.12-26,784.84-4,709.20

Finding the Fourth Proportional to 17,857.12, 26,784.84 and 4,709.20

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Solution

The fourth proportional to 17,857.12, 26,784.84 and 4,709.20 is: 7,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.12 : 26,784.84 = 4,709.20 : x
  2. Step 2: Convert to fraction form
    17,857.12/26,784.84 = 4,709.20/x
  3. Step 3: Cross multiply
    17,857.12x = 26,784.84 × 4,709.20
  4. Step 4: Simplify right side
    17,857.12x = 126,135,168.53
  5. Step 5: Solve for x
    x = 126,135,168.53/17,857.12
  6. Step 6: Final answer
    x = 7,063.58

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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.