Home / 15,418.50-21,277.53-8,344.98

Finding the Fourth Proportional to 15,418.50, 21,277.53 and 8,344.98

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Solution

The fourth proportional to 15,418.50, 21,277.53 and 8,344.98 is: 11,516.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418.50 : 21,277.53 = 8,344.98 : x
  2. Step 2: Convert to fraction form
    15,418.50/21,277.53 = 8,344.98/x
  3. Step 3: Cross multiply
    15,418.50x = 21,277.53 × 8,344.98
  4. Step 4: Simplify right side
    15,418.50x = 177,560,562.30
  5. Step 5: Solve for x
    x = 177,560,562.30/15,418.50
  6. Step 6: Final answer
    x = 11,516.07

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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.