Home / 10,409.56-15,517.94-10,249.72

Finding the Fourth Proportional to 10,409.56, 15,517.94 and 10,249.72

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Solution

The fourth proportional to 10,409.56, 15,517.94 and 10,249.72 is: 15,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.56 : 15,517.94 = 10,249.72 : x
  2. Step 2: Convert to fraction form
    10,409.56/15,517.94 = 10,249.72/x
  3. Step 3: Cross multiply
    10,409.56x = 15,517.94 × 10,249.72
  4. Step 4: Simplify right side
    10,409.56x = 159,054,539.98
  5. Step 5: Solve for x
    x = 159,054,539.98/10,409.56
  6. Step 6: Final answer
    x = 15,279.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.