Home / 21,098.76-29,116.71-11,667.66

Finding the Fourth Proportional to 21,098.76, 29,116.71 and 11,667.66

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Solution

The fourth proportional to 21,098.76, 29,116.71 and 11,667.66 is: 16,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.76 : 29,116.71 = 11,667.66 : x
  2. Step 2: Convert to fraction form
    21,098.76/29,116.71 = 11,667.66/x
  3. Step 3: Cross multiply
    21,098.76x = 29,116.71 × 11,667.66
  4. Step 4: Simplify right side
    21,098.76x = 339,723,872.60
  5. Step 5: Solve for x
    x = 339,723,872.60/21,098.76
  6. Step 6: Final answer
    x = 16,101.60

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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.