Home / 15,554.85-21,476.25-11,963.45

Finding the Fourth Proportional to 15,554.85, 21,476.25 and 11,963.45

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Solution

The fourth proportional to 15,554.85, 21,476.25 and 11,963.45 is: 16,517.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.85 : 21,476.25 = 11,963.45 : x
  2. Step 2: Convert to fraction form
    15,554.85/21,476.25 = 11,963.45/x
  3. Step 3: Cross multiply
    15,554.85x = 21,476.25 × 11,963.45
  4. Step 4: Simplify right side
    15,554.85x = 256,930,043.06
  5. Step 5: Solve for x
    x = 256,930,043.06/15,554.85
  6. Step 6: Final answer
    x = 16,517.68

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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.