Home / 15,938.82-21,996.10-8,769.02

Finding the Fourth Proportional to 15,938.82, 21,996.10 and 8,769.02

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Solution

The fourth proportional to 15,938.82, 21,996.10 and 8,769.02 is: 12,101.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.82 : 21,996.10 = 8,769.02 : x
  2. Step 2: Convert to fraction form
    15,938.82/21,996.10 = 8,769.02/x
  3. Step 3: Cross multiply
    15,938.82x = 21,996.10 × 8,769.02
  4. Step 4: Simplify right side
    15,938.82x = 192,884,240.82
  5. Step 5: Solve for x
    x = 192,884,240.82/15,938.82
  6. Step 6: Final answer
    x = 12,101.54

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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.