Home / 13,529.67-18,656.56-9,286.89

Finding the Fourth Proportional to 13,529.67, 18,656.56 and 9,286.89

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Solution

The fourth proportional to 13,529.67, 18,656.56 and 9,286.89 is: 12,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.67 : 18,656.56 = 9,286.89 : x
  2. Step 2: Convert to fraction form
    13,529.67/18,656.56 = 9,286.89/x
  3. Step 3: Cross multiply
    13,529.67x = 18,656.56 × 9,286.89
  4. Step 4: Simplify right side
    13,529.67x = 173,261,450.65
  5. Step 5: Solve for x
    x = 173,261,450.65/13,529.67
  6. Step 6: Final answer
    x = 12,806.04

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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.