Home / 7,674.31-11,511.47-2,409.72

Finding the Fourth Proportional to 7,674.31, 11,511.47 and 2,409.72

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Solution

The fourth proportional to 7,674.31, 11,511.47 and 2,409.72 is: 3,614.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.31 : 11,511.47 = 2,409.72 : x
  2. Step 2: Convert to fraction form
    7,674.31/11,511.47 = 2,409.72/x
  3. Step 3: Cross multiply
    7,674.31x = 11,511.47 × 2,409.72
  4. Step 4: Simplify right side
    7,674.31x = 27,739,349.88
  5. Step 5: Solve for x
    x = 27,739,349.88/7,674.31
  6. Step 6: Final answer
    x = 3,614.57

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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.