Home / 17,828.64-26,724.96-12,886.20

Finding the Fourth Proportional to 17,828.64, 26,724.96 and 12,886.20

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Solution

The fourth proportional to 17,828.64, 26,724.96 and 12,886.20 is: 19,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,828.64 : 26,724.96 = 12,886.20 : x
  2. Step 2: Convert to fraction form
    17,828.64/26,724.96 = 12,886.20/x
  3. Step 3: Cross multiply
    17,828.64x = 26,724.96 × 12,886.20
  4. Step 4: Simplify right side
    17,828.64x = 344,383,179.55
  5. Step 5: Solve for x
    x = 344,383,179.55/17,828.64
  6. Step 6: Final answer
    x = 19,316.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.