Home / 13,112.30-19,564.29-12,183.26

Finding the Fourth Proportional to 13,112.30, 19,564.29 and 12,183.26

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Solution

The fourth proportional to 13,112.30, 19,564.29 and 12,183.26 is: 18,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.30 : 19,564.29 = 12,183.26 : x
  2. Step 2: Convert to fraction form
    13,112.30/19,564.29 = 12,183.26/x
  3. Step 3: Cross multiply
    13,112.30x = 19,564.29 × 12,183.26
  4. Step 4: Simplify right side
    13,112.30x = 238,356,770.87
  5. Step 5: Solve for x
    x = 238,356,770.87/13,112.30
  6. Step 6: Final answer
    x = 18,178.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.