Home / 13,286.10-18,334.94-7,317.98

Finding the Fourth Proportional to 13,286.10, 18,334.94 and 7,317.98

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Solution

The fourth proportional to 13,286.10, 18,334.94 and 7,317.98 is: 10,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.10 : 18,334.94 = 7,317.98 : x
  2. Step 2: Convert to fraction form
    13,286.10/18,334.94 = 7,317.98/x
  3. Step 3: Cross multiply
    13,286.10x = 18,334.94 × 7,317.98
  4. Step 4: Simplify right side
    13,286.10x = 134,174,724.22
  5. Step 5: Solve for x
    x = 134,174,724.22/13,286.10
  6. Step 6: Final answer
    x = 10,098.88

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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.