Home / 12,764.28-17,616.78-10,667.64

Finding the Fourth Proportional to 12,764.28, 17,616.78 and 10,667.64

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Solution

The fourth proportional to 12,764.28, 17,616.78 and 10,667.64 is: 14,723.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.28 : 17,616.78 = 10,667.64 : x
  2. Step 2: Convert to fraction form
    12,764.28/17,616.78 = 10,667.64/x
  3. Step 3: Cross multiply
    12,764.28x = 17,616.78 × 10,667.64
  4. Step 4: Simplify right side
    12,764.28x = 187,929,467.00
  5. Step 5: Solve for x
    x = 187,929,467.00/12,764.28
  6. Step 6: Final answer
    x = 14,723.08

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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.