Home / 12,447.12-18,673.28-4,126.64

Finding the Fourth Proportional to 12,447.12, 18,673.28 and 4,126.64

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Solution

The fourth proportional to 12,447.12, 18,673.28 and 4,126.64 is: 6,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.12 : 18,673.28 = 4,126.64 : x
  2. Step 2: Convert to fraction form
    12,447.12/18,673.28 = 4,126.64/x
  3. Step 3: Cross multiply
    12,447.12x = 18,673.28 × 4,126.64
  4. Step 4: Simplify right side
    12,447.12x = 77,057,904.18
  5. Step 5: Solve for x
    x = 77,057,904.18/12,447.12
  6. Step 6: Final answer
    x = 6,190.82

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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.