Home / 13,789.10-20,667.24-7,933.41

Finding the Fourth Proportional to 13,789.10, 20,667.24 and 7,933.41

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Solution

The fourth proportional to 13,789.10, 20,667.24 and 7,933.41 is: 11,890.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,789.10 : 20,667.24 = 7,933.41 : x
  2. Step 2: Convert to fraction form
    13,789.10/20,667.24 = 7,933.41/x
  3. Step 3: Cross multiply
    13,789.10x = 20,667.24 × 7,933.41
  4. Step 4: Simplify right side
    13,789.10x = 163,961,688.49
  5. Step 5: Solve for x
    x = 163,961,688.49/13,789.10
  6. Step 6: Final answer
    x = 11,890.68

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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.