Home / 11,511.58-17,267.46-3,720.40

Finding the Fourth Proportional to 11,511.58, 17,267.46 and 3,720.40

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Solution

The fourth proportional to 11,511.58, 17,267.46 and 3,720.40 is: 5,580.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.58 : 17,267.46 = 3,720.40 : x
  2. Step 2: Convert to fraction form
    11,511.58/17,267.46 = 3,720.40/x
  3. Step 3: Cross multiply
    11,511.58x = 17,267.46 × 3,720.40
  4. Step 4: Simplify right side
    11,511.58x = 64,241,858.18
  5. Step 5: Solve for x
    x = 64,241,858.18/11,511.58
  6. Step 6: Final answer
    x = 5,580.63

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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.