Home / 7,409.14-11,115.23-2,478.82

Finding the Fourth Proportional to 7,409.14, 11,115.23 and 2,478.82

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Solution

The fourth proportional to 7,409.14, 11,115.23 and 2,478.82 is: 3,718.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.14 : 11,115.23 = 2,478.82 : x
  2. Step 2: Convert to fraction form
    7,409.14/11,115.23 = 2,478.82/x
  3. Step 3: Cross multiply
    7,409.14x = 11,115.23 × 2,478.82
  4. Step 4: Simplify right side
    7,409.14x = 27,552,654.43
  5. Step 5: Solve for x
    x = 27,552,654.43/7,409.14
  6. Step 6: Final answer
    x = 3,718.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.