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Finding the Fourth Proportional to 13,362.86, 18,441.13 and 7,395.09

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Solution

The fourth proportional to 13,362.86, 18,441.13 and 7,395.09 is: 10,205.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.86 : 18,441.13 = 7,395.09 : x
  2. Step 2: Convert to fraction form
    13,362.86/18,441.13 = 7,395.09/x
  3. Step 3: Cross multiply
    13,362.86x = 18,441.13 × 7,395.09
  4. Step 4: Simplify right side
    13,362.86x = 136,373,816.05
  5. Step 5: Solve for x
    x = 136,373,816.05/13,362.86
  6. Step 6: Final answer
    x = 10,205.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.