Home / 13,667.16-18,860.82-8,000.66

Finding the Fourth Proportional to 13,667.16, 18,860.82 and 8,000.66

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Solution

The fourth proportional to 13,667.16, 18,860.82 and 8,000.66 is: 11,040.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,667.16 : 18,860.82 = 8,000.66 : x
  2. Step 2: Convert to fraction form
    13,667.16/18,860.82 = 8,000.66/x
  3. Step 3: Cross multiply
    13,667.16x = 18,860.82 × 8,000.66
  4. Step 4: Simplify right side
    13,667.16x = 150,899,008.14
  5. Step 5: Solve for x
    x = 150,899,008.14/13,667.16
  6. Step 6: Final answer
    x = 11,040.99

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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.