Home / 14,282.36-19,705.92-8,231.12

Finding the Fourth Proportional to 14,282.36, 19,705.92 and 8,231.12

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Solution

The fourth proportional to 14,282.36, 19,705.92 and 8,231.12 is: 11,356.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.36 : 19,705.92 = 8,231.12 : x
  2. Step 2: Convert to fraction form
    14,282.36/19,705.92 = 8,231.12/x
  3. Step 3: Cross multiply
    14,282.36x = 19,705.92 × 8,231.12
  4. Step 4: Simplify right side
    14,282.36x = 162,201,792.23
  5. Step 5: Solve for x
    x = 162,201,792.23/14,282.36
  6. Step 6: Final answer
    x = 11,356.79

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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.