Home / 11,511.15-17,267.70-3,191.17

Finding the Fourth Proportional to 11,511.15, 17,267.70 and 3,191.17

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Solution

The fourth proportional to 11,511.15, 17,267.70 and 3,191.17 is: 4,787.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.15 : 17,267.70 = 3,191.17 : x
  2. Step 2: Convert to fraction form
    11,511.15/17,267.70 = 3,191.17/x
  3. Step 3: Cross multiply
    11,511.15x = 17,267.70 × 3,191.17
  4. Step 4: Simplify right side
    11,511.15x = 55,104,079.87
  5. Step 5: Solve for x
    x = 55,104,079.87/11,511.15
  6. Step 6: Final answer
    x = 4,787.02

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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.