Home / 18,390.93-27,588.89-5,906.80

Finding the Fourth Proportional to 18,390.93, 27,588.89 and 5,906.80

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Solution

The fourth proportional to 18,390.93, 27,588.89 and 5,906.80 is: 8,861.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.93 : 27,588.89 = 5,906.80 : x
  2. Step 2: Convert to fraction form
    18,390.93/27,588.89 = 5,906.80/x
  3. Step 3: Cross multiply
    18,390.93x = 27,588.89 × 5,906.80
  4. Step 4: Simplify right side
    18,390.93x = 162,962,055.45
  5. Step 5: Solve for x
    x = 162,962,055.45/18,390.93
  6. Step 6: Final answer
    x = 8,861.00

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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.