Home / 12,164.09-18,246.20-4,272.30

Finding the Fourth Proportional to 12,164.09, 18,246.20 and 4,272.30

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Solution

The fourth proportional to 12,164.09, 18,246.20 and 4,272.30 is: 6,408.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.09 : 18,246.20 = 4,272.30 : x
  2. Step 2: Convert to fraction form
    12,164.09/18,246.20 = 4,272.30/x
  3. Step 3: Cross multiply
    12,164.09x = 18,246.20 × 4,272.30
  4. Step 4: Simplify right side
    12,164.09x = 77,953,218.90
  5. Step 5: Solve for x
    x = 77,953,218.90/12,164.09
  6. Step 6: Final answer
    x = 6,408.47

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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.