Home / 14,618.76-20,168.64-8,327.49

Finding the Fourth Proportional to 14,618.76, 20,168.64 and 8,327.49

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Solution

The fourth proportional to 14,618.76, 20,168.64 and 8,327.49 is: 11,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.76 : 20,168.64 = 8,327.49 : x
  2. Step 2: Convert to fraction form
    14,618.76/20,168.64 = 8,327.49/x
  3. Step 3: Cross multiply
    14,618.76x = 20,168.64 × 8,327.49
  4. Step 4: Simplify right side
    14,618.76x = 167,954,147.91
  5. Step 5: Solve for x
    x = 167,954,147.91/14,618.76
  6. Step 6: Final answer
    x = 11,488.95

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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.