Home / 15,481.84-21,366.26-8,768.66

Finding the Fourth Proportional to 15,481.84, 21,366.26 and 8,768.66

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Solution

The fourth proportional to 15,481.84, 21,366.26 and 8,768.66 is: 12,101.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.84 : 21,366.26 = 8,768.66 : x
  2. Step 2: Convert to fraction form
    15,481.84/21,366.26 = 8,768.66/x
  3. Step 3: Cross multiply
    15,481.84x = 21,366.26 × 8,768.66
  4. Step 4: Simplify right side
    15,481.84x = 187,353,447.14
  5. Step 5: Solve for x
    x = 187,353,447.14/15,481.84
  6. Step 6: Final answer
    x = 12,101.50

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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.