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Finding the Fourth Proportional to 18,190.35, 27,289.64 and 5,710.32

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Solution

The fourth proportional to 18,190.35, 27,289.64 and 5,710.32 is: 8,566.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.35 : 27,289.64 = 5,710.32 : x
  2. Step 2: Convert to fraction form
    18,190.35/27,289.64 = 5,710.32/x
  3. Step 3: Cross multiply
    18,190.35x = 27,289.64 × 5,710.32
  4. Step 4: Simplify right side
    18,190.35x = 155,832,591.36
  5. Step 5: Solve for x
    x = 155,832,591.36/18,190.35
  6. Step 6: Final answer
    x = 8,566.77

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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.