Home / 13,321.37-18,383.14-7,352.91

Finding the Fourth Proportional to 13,321.37, 18,383.14 and 7,352.91

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Solution

The fourth proportional to 13,321.37, 18,383.14 and 7,352.91 is: 10,146.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.37 : 18,383.14 = 7,352.91 : x
  2. Step 2: Convert to fraction form
    13,321.37/18,383.14 = 7,352.91/x
  3. Step 3: Cross multiply
    13,321.37x = 18,383.14 × 7,352.91
  4. Step 4: Simplify right side
    13,321.37x = 135,169,592.32
  5. Step 5: Solve for x
    x = 135,169,592.32/13,321.37
  6. Step 6: Final answer
    x = 10,146.82

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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.