Home / 18,113.06-27,171.80-5,633.75

Finding the Fourth Proportional to 18,113.06, 27,171.80 and 5,633.75

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Solution

The fourth proportional to 18,113.06, 27,171.80 and 5,633.75 is: 8,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.06 : 27,171.80 = 5,633.75 : x
  2. Step 2: Convert to fraction form
    18,113.06/27,171.80 = 5,633.75/x
  3. Step 3: Cross multiply
    18,113.06x = 27,171.80 × 5,633.75
  4. Step 4: Simplify right side
    18,113.06x = 153,079,100.08
  5. Step 5: Solve for x
    x = 153,079,100.08/18,113.06
  6. Step 6: Final answer
    x = 8,451.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.