Home / 12,447.28-18,667.05-4,125.43

Finding the Fourth Proportional to 12,447.28, 18,667.05 and 4,125.43

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Solution

The fourth proportional to 12,447.28, 18,667.05 and 4,125.43 is: 6,186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.28 : 18,667.05 = 4,125.43 : x
  2. Step 2: Convert to fraction form
    12,447.28/18,667.05 = 4,125.43/x
  3. Step 3: Cross multiply
    12,447.28x = 18,667.05 × 4,125.43
  4. Step 4: Simplify right side
    12,447.28x = 77,009,608.08
  5. Step 5: Solve for x
    x = 77,009,608.08/12,447.28
  6. Step 6: Final answer
    x = 6,186.86

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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.