Home / 18,338.84-25,308.20-10,380.89

Finding the Fourth Proportional to 18,338.84, 25,308.20 and 10,380.89

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Solution

The fourth proportional to 18,338.84, 25,308.20 and 10,380.89 is: 14,325.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.84 : 25,308.20 = 10,380.89 : x
  2. Step 2: Convert to fraction form
    18,338.84/25,308.20 = 10,380.89/x
  3. Step 3: Cross multiply
    18,338.84x = 25,308.20 × 10,380.89
  4. Step 4: Simplify right side
    18,338.84x = 262,721,651.66
  5. Step 5: Solve for x
    x = 262,721,651.66/18,338.84
  6. Step 6: Final answer
    x = 14,325.97

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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.