Home / 21,146.56-29,182.30-11,714.92

Finding the Fourth Proportional to 21,146.56, 29,182.30 and 11,714.92

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Solution

The fourth proportional to 21,146.56, 29,182.30 and 11,714.92 is: 16,166.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.56 : 29,182.30 = 11,714.92 : x
  2. Step 2: Convert to fraction form
    21,146.56/29,182.30 = 11,714.92/x
  3. Step 3: Cross multiply
    21,146.56x = 29,182.30 × 11,714.92
  4. Step 4: Simplify right side
    21,146.56x = 341,868,309.92
  5. Step 5: Solve for x
    x = 341,868,309.92/21,146.56
  6. Step 6: Final answer
    x = 16,166.62

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Double 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.