Home / 21,106.64-29,126.94-11,546.30

Finding the Fourth Proportional to 21,106.64, 29,126.94 and 11,546.30

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Solution

The fourth proportional to 21,106.64, 29,126.94 and 11,546.30 is: 15,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.64 : 29,126.94 = 11,546.30 : x
  2. Step 2: Convert to fraction form
    21,106.64/29,126.94 = 11,546.30/x
  3. Step 3: Cross multiply
    21,106.64x = 29,126.94 × 11,546.30
  4. Step 4: Simplify right side
    21,106.64x = 336,308,387.32
  5. Step 5: Solve for x
    x = 336,308,387.32/21,106.64
  6. Step 6: Final answer
    x = 15,933.77

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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.