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Finding the Fourth Proportional to 18,107.73, 24,989.70 and 13,623.45

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Solution

The fourth proportional to 18,107.73, 24,989.70 and 13,623.45 is: 18,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.73 : 24,989.70 = 13,623.45 : x
  2. Step 2: Convert to fraction form
    18,107.73/24,989.70 = 13,623.45/x
  3. Step 3: Cross multiply
    18,107.73x = 24,989.70 × 13,623.45
  4. Step 4: Simplify right side
    18,107.73x = 340,445,928.47
  5. Step 5: Solve for x
    x = 340,445,928.47/18,107.73
  6. Step 6: Final answer
    x = 18,801.14

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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.