Home / 18,385.44-27,561.48-6,690.36

Finding the Fourth Proportional to 18,385.44, 27,561.48 and 6,690.36

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Solution

The fourth proportional to 18,385.44, 27,561.48 and 6,690.36 is: 10,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.44 : 27,561.48 = 6,690.36 : x
  2. Step 2: Convert to fraction form
    18,385.44/27,561.48 = 6,690.36/x
  3. Step 3: Cross multiply
    18,385.44x = 27,561.48 × 6,690.36
  4. Step 4: Simplify right side
    18,385.44x = 184,396,223.33
  5. Step 5: Solve for x
    x = 184,396,223.33/18,385.44
  6. Step 6: Final answer
    x = 10,029.47

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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.