Home / 12,944.40-19,420.85-4,179.39

Finding the Fourth Proportional to 12,944.40, 19,420.85 and 4,179.39

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Solution

The fourth proportional to 12,944.40, 19,420.85 and 4,179.39 is: 6,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944.40 : 19,420.85 = 4,179.39 : x
  2. Step 2: Convert to fraction form
    12,944.40/19,420.85 = 4,179.39/x
  3. Step 3: Cross multiply
    12,944.40x = 19,420.85 × 4,179.39
  4. Step 4: Simplify right side
    12,944.40x = 81,167,306.28
  5. Step 5: Solve for x
    x = 81,167,306.28/12,944.40
  6. Step 6: Final answer
    x = 6,270.46

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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.