Home / 15,938.98-21,996.26-8,768.55

Finding the Fourth Proportional to 15,938.98, 21,996.26 and 8,768.55

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Solution

The fourth proportional to 15,938.98, 21,996.26 and 8,768.55 is: 12,100.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.98 : 21,996.26 = 8,768.55 : x
  2. Step 2: Convert to fraction form
    15,938.98/21,996.26 = 8,768.55/x
  3. Step 3: Cross multiply
    15,938.98x = 21,996.26 × 8,768.55
  4. Step 4: Simplify right side
    15,938.98x = 192,875,377.15
  5. Step 5: Solve for x
    x = 192,875,377.15/15,938.98
  6. Step 6: Final answer
    x = 12,100.86

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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.