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Finding the Fourth Proportional to 13,602.43, 18,771.04 and 7,633.95

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Solution

The fourth proportional to 13,602.43, 18,771.04 and 7,633.95 is: 10,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.43 : 18,771.04 = 7,633.95 : x
  2. Step 2: Convert to fraction form
    13,602.43/18,771.04 = 7,633.95/x
  3. Step 3: Cross multiply
    13,602.43x = 18,771.04 × 7,633.95
  4. Step 4: Simplify right side
    13,602.43x = 143,297,180.81
  5. Step 5: Solve for x
    x = 143,297,180.81/13,602.43
  6. Step 6: Final answer
    x = 10,534.68

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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.