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Finding the Fourth Proportional to 15,236.89, 21,028 and 8,524.67

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Solution

The fourth proportional to 15,236.89, 21,028 and 8,524.67 is: 11,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,236.89 : 21,028 = 8,524.67 : x
  2. Step 2: Convert to fraction form
    15,236.89/21,028 = 8,524.67/x
  3. Step 3: Cross multiply
    15,236.89x = 21,028 × 8,524.67
  4. Step 4: Simplify right side
    15,236.89x = 179,256,760.76
  5. Step 5: Solve for x
    x = 179,256,760.76/15,236.89
  6. Step 6: Final answer
    x = 11,764.66

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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.