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Finding the Fourth Proportional to 13,635, 18,809.01 and 9,151.04

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Solution

The fourth proportional to 13,635, 18,809.01 and 9,151.04 is: 12,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635 : 18,809.01 = 9,151.04 : x
  2. Step 2: Convert to fraction form
    13,635/18,809.01 = 9,151.04/x
  3. Step 3: Cross multiply
    13,635x = 18,809.01 × 9,151.04
  4. Step 4: Simplify right side
    13,635x = 172,122,049.89
  5. Step 5: Solve for x
    x = 172,122,049.89/13,635
  6. Step 6: Final answer
    x = 12,623.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.