Home / 14,667.36-20,241.21-8,379.78

Finding the Fourth Proportional to 14,667.36, 20,241.21 and 8,379.78

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Solution

The fourth proportional to 14,667.36, 20,241.21 and 8,379.78 is: 11,564.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,667.36 : 20,241.21 = 8,379.78 : x
  2. Step 2: Convert to fraction form
    14,667.36/20,241.21 = 8,379.78/x
  3. Step 3: Cross multiply
    14,667.36x = 20,241.21 × 8,379.78
  4. Step 4: Simplify right side
    14,667.36x = 169,616,886.73
  5. Step 5: Solve for x
    x = 169,616,886.73/14,667.36
  6. Step 6: Final answer
    x = 11,564.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.