Home / 21,276.11-29,359.88-11,714.13

Finding the Fourth Proportional to 21,276.11, 29,359.88 and 11,714.13

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Solution

The fourth proportional to 21,276.11, 29,359.88 and 11,714.13 is: 16,164.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.11 : 29,359.88 = 11,714.13 : x
  2. Step 2: Convert to fraction form
    21,276.11/29,359.88 = 11,714.13/x
  3. Step 3: Cross multiply
    21,276.11x = 29,359.88 × 11,714.13
  4. Step 4: Simplify right side
    21,276.11x = 343,925,392.53
  5. Step 5: Solve for x
    x = 343,925,392.53/21,276.11
  6. Step 6: Final answer
    x = 16,164.87

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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.