Home / 12,387.59-18,582.25-4,992.09

Finding the Fourth Proportional to 12,387.59, 18,582.25 and 4,992.09

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Solution

The fourth proportional to 12,387.59, 18,582.25 and 4,992.09 is: 7,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.59 : 18,582.25 = 4,992.09 : x
  2. Step 2: Convert to fraction form
    12,387.59/18,582.25 = 4,992.09/x
  3. Step 3: Cross multiply
    12,387.59x = 18,582.25 × 4,992.09
  4. Step 4: Simplify right side
    12,387.59x = 92,764,264.40
  5. Step 5: Solve for x
    x = 92,764,264.40/12,387.59
  6. Step 6: Final answer
    x = 7,488.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.