Home / 12,486.22-18,722.31-5,465.14

Finding the Fourth Proportional to 12,486.22, 18,722.31 and 5,465.14

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Solution

The fourth proportional to 12,486.22, 18,722.31 and 5,465.14 is: 8,194.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.22 : 18,722.31 = 5,465.14 : x
  2. Step 2: Convert to fraction form
    12,486.22/18,722.31 = 5,465.14/x
  3. Step 3: Cross multiply
    12,486.22x = 18,722.31 × 5,465.14
  4. Step 4: Simplify right side
    12,486.22x = 102,320,045.27
  5. Step 5: Solve for x
    x = 102,320,045.27/12,486.22
  6. Step 6: Final answer
    x = 8,194.64

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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.