Home / 11,511.28-15,882.82-6,474.50

Finding the Fourth Proportional to 11,511.28, 15,882.82 and 6,474.50

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Solution

The fourth proportional to 11,511.28, 15,882.82 and 6,474.50 is: 8,933.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.28 : 15,882.82 = 6,474.50 : x
  2. Step 2: Convert to fraction form
    11,511.28/15,882.82 = 6,474.50/x
  3. Step 3: Cross multiply
    11,511.28x = 15,882.82 × 6,474.50
  4. Step 4: Simplify right side
    11,511.28x = 102,833,282.05
  5. Step 5: Solve for x
    x = 102,833,282.05/11,511.28
  6. Step 6: Final answer
    x = 8,933.26

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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.