Home / 12,166.91-18,240.98-10,930.58

Finding the Fourth Proportional to 12,166.91, 18,240.98 and 10,930.58

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Solution

The fourth proportional to 12,166.91, 18,240.98 and 10,930.58 is: 16,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,166.91 : 18,240.98 = 10,930.58 : x
  2. Step 2: Convert to fraction form
    12,166.91/18,240.98 = 10,930.58/x
  3. Step 3: Cross multiply
    12,166.91x = 18,240.98 × 10,930.58
  4. Step 4: Simplify right side
    12,166.91x = 199,384,345.31
  5. Step 5: Solve for x
    x = 199,384,345.31/12,166.91
  6. Step 6: Final answer
    x = 16,387.43

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1.5x scale

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.