Home / 13,410.52-18,505.87-7,360.61

Finding the Fourth Proportional to 13,410.52, 18,505.87 and 7,360.61

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Solution

The fourth proportional to 13,410.52, 18,505.87 and 7,360.61 is: 10,157.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.52 : 18,505.87 = 7,360.61 : x
  2. Step 2: Convert to fraction form
    13,410.52/18,505.87 = 7,360.61/x
  3. Step 3: Cross multiply
    13,410.52x = 18,505.87 × 7,360.61
  4. Step 4: Simplify right side
    13,410.52x = 136,214,519.64
  5. Step 5: Solve for x
    x = 136,214,519.64/13,410.52
  6. Step 6: Final answer
    x = 10,157.29

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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.