Home / 21,186.18-29,237.13-11,755.62

Finding the Fourth Proportional to 21,186.18, 29,237.13 and 11,755.62

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Solution

The fourth proportional to 21,186.18, 29,237.13 and 11,755.62 is: 16,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.18 : 29,237.13 = 11,755.62 : x
  2. Step 2: Convert to fraction form
    21,186.18/29,237.13 = 11,755.62/x
  3. Step 3: Cross multiply
    21,186.18x = 29,237.13 × 11,755.62
  4. Step 4: Simplify right side
    21,186.18x = 343,700,590.17
  5. Step 5: Solve for x
    x = 343,700,590.17/21,186.18
  6. Step 6: Final answer
    x = 16,222.87

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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.