Home / 13,955.75-21,026.72-12,623.09

Finding the Fourth Proportional to 13,955.75, 21,026.72 and 12,623.09

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Solution

The fourth proportional to 13,955.75, 21,026.72 and 12,623.09 is: 19,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.75 : 21,026.72 = 12,623.09 : x
  2. Step 2: Convert to fraction form
    13,955.75/21,026.72 = 12,623.09/x
  3. Step 3: Cross multiply
    13,955.75x = 21,026.72 × 12,623.09
  4. Step 4: Simplify right side
    13,955.75x = 265,422,089.57
  5. Step 5: Solve for x
    x = 265,422,089.57/13,955.75
  6. Step 6: Final answer
    x = 19,018.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.