Home / 13,936.12-20,903.64-5,167.12

Finding the Fourth Proportional to 13,936.12, 20,903.64 and 5,167.12

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Solution

The fourth proportional to 13,936.12, 20,903.64 and 5,167.12 is: 7,750.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.12 : 20,903.64 = 5,167.12 : x
  2. Step 2: Convert to fraction form
    13,936.12/20,903.64 = 5,167.12/x
  3. Step 3: Cross multiply
    13,936.12x = 20,903.64 × 5,167.12
  4. Step 4: Simplify right side
    13,936.12x = 108,011,616.32
  5. Step 5: Solve for x
    x = 108,011,616.32/13,936.12
  6. Step 6: Final answer
    x = 7,750.48

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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.