Home / 13,371.62-18,450.96-7,705.90

Finding the Fourth Proportional to 13,371.62, 18,450.96 and 7,705.90

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Solution

The fourth proportional to 13,371.62, 18,450.96 and 7,705.90 is: 10,633.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.62 : 18,450.96 = 7,705.90 : x
  2. Step 2: Convert to fraction form
    13,371.62/18,450.96 = 7,705.90/x
  3. Step 3: Cross multiply
    13,371.62x = 18,450.96 × 7,705.90
  4. Step 4: Simplify right side
    13,371.62x = 142,181,246.83
  5. Step 5: Solve for x
    x = 142,181,246.83/13,371.62
  6. Step 6: Final answer
    x = 10,633.06

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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.