Home / 15,923.97-21,961.71-13,411.98

Finding the Fourth Proportional to 15,923.97, 21,961.71 and 13,411.98

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Solution

The fourth proportional to 15,923.97, 21,961.71 and 13,411.98 is: 18,497.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,923.97 : 21,961.71 = 13,411.98 : x
  2. Step 2: Convert to fraction form
    15,923.97/21,961.71 = 13,411.98/x
  3. Step 3: Cross multiply
    15,923.97x = 21,961.71 × 13,411.98
  4. Step 4: Simplify right side
    15,923.97x = 294,550,015.29
  5. Step 5: Solve for x
    x = 294,550,015.29/15,923.97
  6. Step 6: Final answer
    x = 18,497.27

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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.