Home / 13,392.25-18,473.61-8,354.05

Finding the Fourth Proportional to 13,392.25, 18,473.61 and 8,354.05

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Solution

The fourth proportional to 13,392.25, 18,473.61 and 8,354.05 is: 11,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.25 : 18,473.61 = 8,354.05 : x
  2. Step 2: Convert to fraction form
    13,392.25/18,473.61 = 8,354.05/x
  3. Step 3: Cross multiply
    13,392.25x = 18,473.61 × 8,354.05
  4. Step 4: Simplify right side
    13,392.25x = 154,329,461.62
  5. Step 5: Solve for x
    x = 154,329,461.62/13,392.25
  6. Step 6: Final answer
    x = 11,523.79

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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.