Home / 13,667.13-20,425.82-9,977.13

Finding the Fourth Proportional to 13,667.13, 20,425.82 and 9,977.13

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Solution

The fourth proportional to 13,667.13, 20,425.82 and 9,977.13 is: 14,911.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.13 : 20,425.82 = 9,977.13 : x
  2. Step 2: Convert to fraction form
    13,667.13/20,425.82 = 9,977.13/x
  3. Step 3: Cross multiply
    13,667.13x = 20,425.82 × 9,977.13
  4. Step 4: Simplify right side
    13,667.13x = 203,791,134.98
  5. Step 5: Solve for x
    x = 203,791,134.98/13,667.13
  6. Step 6: Final answer
    x = 14,911.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.