Home / 12,479.08-18,627.22-11,002.88

Finding the Fourth Proportional to 12,479.08, 18,627.22 and 11,002.88

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Solution

The fourth proportional to 12,479.08, 18,627.22 and 11,002.88 is: 16,423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.08 : 18,627.22 = 11,002.88 : x
  2. Step 2: Convert to fraction form
    12,479.08/18,627.22 = 11,002.88/x
  3. Step 3: Cross multiply
    12,479.08x = 18,627.22 × 11,002.88
  4. Step 4: Simplify right side
    12,479.08x = 204,953,066.39
  5. Step 5: Solve for x
    x = 204,953,066.39/12,479.08
  6. Step 6: Final answer
    x = 16,423.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.