Home / 13,961.36-20,944.96-12,567.20

Finding the Fourth Proportional to 13,961.36, 20,944.96 and 12,567.20

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Solution

The fourth proportional to 13,961.36, 20,944.96 and 12,567.20 is: 18,853.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.36 : 20,944.96 = 12,567.20 : x
  2. Step 2: Convert to fraction form
    13,961.36/20,944.96 = 12,567.20/x
  3. Step 3: Cross multiply
    13,961.36x = 20,944.96 × 12,567.20
  4. Step 4: Simplify right side
    13,961.36x = 263,219,501.31
  5. Step 5: Solve for x
    x = 263,219,501.31/13,961.36
  6. Step 6: Final answer
    x = 18,853.43

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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.