Home / 13,371.93-18,450.79-7,705.88

Finding the Fourth Proportional to 13,371.93, 18,450.79 and 7,705.88

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Solution

The fourth proportional to 13,371.93, 18,450.79 and 7,705.88 is: 10,632.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.93 : 18,450.79 = 7,705.88 : x
  2. Step 2: Convert to fraction form
    13,371.93/18,450.79 = 7,705.88/x
  3. Step 3: Cross multiply
    13,371.93x = 18,450.79 × 7,705.88
  4. Step 4: Simplify right side
    13,371.93x = 142,179,573.65
  5. Step 5: Solve for x
    x = 142,179,573.65/13,371.93
  6. Step 6: Final answer
    x = 10,632.69

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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.