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Finding the Fourth Proportional to 18,641.81, 27,962.57 and 5,493.99

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Solution

The fourth proportional to 18,641.81, 27,962.57 and 5,493.99 is: 8,240.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,641.81 : 27,962.57 = 5,493.99 : x
  2. Step 2: Convert to fraction form
    18,641.81/27,962.57 = 5,493.99/x
  3. Step 3: Cross multiply
    18,641.81x = 27,962.57 × 5,493.99
  4. Step 4: Simplify right side
    18,641.81x = 153,626,052.48
  5. Step 5: Solve for x
    x = 153,626,052.48/18,641.81
  6. Step 6: Final answer
    x = 8,240.94

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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.