Home / 17,913.44-26,884.07-12,405.38

Finding the Fourth Proportional to 17,913.44, 26,884.07 and 12,405.38

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Solution

The fourth proportional to 17,913.44, 26,884.07 and 12,405.38 is: 18,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.44 : 26,884.07 = 12,405.38 : x
  2. Step 2: Convert to fraction form
    17,913.44/26,884.07 = 12,405.38/x
  3. Step 3: Cross multiply
    17,913.44x = 26,884.07 × 12,405.38
  4. Step 4: Simplify right side
    17,913.44x = 333,506,907.85
  5. Step 5: Solve for x
    x = 333,506,907.85/17,913.44
  6. Step 6: Final answer
    x = 18,617.70

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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.