Home / 21,184.76-29,234.70-11,494.07

Finding the Fourth Proportional to 21,184.76, 29,234.70 and 11,494.07

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Solution

The fourth proportional to 21,184.76, 29,234.70 and 11,494.07 is: 15,861.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.76 : 29,234.70 = 11,494.07 : x
  2. Step 2: Convert to fraction form
    21,184.76/29,234.70 = 11,494.07/x
  3. Step 3: Cross multiply
    21,184.76x = 29,234.70 × 11,494.07
  4. Step 4: Simplify right side
    21,184.76x = 336,025,542.06
  5. Step 5: Solve for x
    x = 336,025,542.06/21,184.76
  6. Step 6: Final answer
    x = 15,861.66

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Half scale
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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.