Home / 15,958.80-21,988.08-11,908.44

Finding the Fourth Proportional to 15,958.80, 21,988.08 and 11,908.44

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Solution

The fourth proportional to 15,958.80, 21,988.08 and 11,908.44 is: 16,407.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.80 : 21,988.08 = 11,908.44 : x
  2. Step 2: Convert to fraction form
    15,958.80/21,988.08 = 11,908.44/x
  3. Step 3: Cross multiply
    15,958.80x = 21,988.08 × 11,908.44
  4. Step 4: Simplify right side
    15,958.80x = 261,843,731.40
  5. Step 5: Solve for x
    x = 261,843,731.40/15,958.80
  6. Step 6: Final answer
    x = 16,407.48

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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.