Home / 13,871.66-19,141.39-8,206.62

Finding the Fourth Proportional to 13,871.66, 19,141.39 and 8,206.62

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Solution

The fourth proportional to 13,871.66, 19,141.39 and 8,206.62 is: 11,324.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.66 : 19,141.39 = 8,206.62 : x
  2. Step 2: Convert to fraction form
    13,871.66/19,141.39 = 8,206.62/x
  3. Step 3: Cross multiply
    13,871.66x = 19,141.39 × 8,206.62
  4. Step 4: Simplify right side
    13,871.66x = 157,086,114.00
  5. Step 5: Solve for x
    x = 157,086,114.00/13,871.66
  6. Step 6: Final answer
    x = 11,324.25

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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.