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Finding the Fourth Proportional to 18,394.58, 25,384.23 and 10,839.71

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Solution

The fourth proportional to 18,394.58, 25,384.23 and 10,839.71 is: 14,958.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.58 : 25,384.23 = 10,839.71 : x
  2. Step 2: Convert to fraction form
    18,394.58/25,384.23 = 10,839.71/x
  3. Step 3: Cross multiply
    18,394.58x = 25,384.23 × 10,839.71
  4. Step 4: Simplify right side
    18,394.58x = 275,157,564.85
  5. Step 5: Solve for x
    x = 275,157,564.85/18,394.58
  6. Step 6: Final answer
    x = 14,958.63

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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.