Home / 12,178.20-16,762.26-10,166.04

Finding the Fourth Proportional to 12,178.20, 16,762.26 and 10,166.04

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Solution

The fourth proportional to 12,178.20, 16,762.26 and 10,166.04 is: 13,992.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.20 : 16,762.26 = 10,166.04 : x
  2. Step 2: Convert to fraction form
    12,178.20/16,762.26 = 10,166.04/x
  3. Step 3: Cross multiply
    12,178.20x = 16,762.26 × 10,166.04
  4. Step 4: Simplify right side
    12,178.20x = 170,405,805.65
  5. Step 5: Solve for x
    x = 170,405,805.65/12,178.20
  6. Step 6: Final answer
    x = 13,992.69

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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.