Home / 12,476.21-18,667.33-11,808.77

Finding the Fourth Proportional to 12,476.21, 18,667.33 and 11,808.77

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Solution

The fourth proportional to 12,476.21, 18,667.33 and 11,808.77 is: 17,668.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.21 : 18,667.33 = 11,808.77 : x
  2. Step 2: Convert to fraction form
    12,476.21/18,667.33 = 11,808.77/x
  3. Step 3: Cross multiply
    12,476.21x = 18,667.33 × 11,808.77
  4. Step 4: Simplify right side
    12,476.21x = 220,438,083.63
  5. Step 5: Solve for x
    x = 220,438,083.63/12,476.21
  6. Step 6: Final answer
    x = 17,668.68

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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.