Home / 11,491.20-17,241.60-3,702.40

Finding the Fourth Proportional to 11,491.20, 17,241.60 and 3,702.40

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Solution

The fourth proportional to 11,491.20, 17,241.60 and 3,702.40 is: 5,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.20 : 17,241.60 = 3,702.40 : x
  2. Step 2: Convert to fraction form
    11,491.20/17,241.60 = 3,702.40/x
  3. Step 3: Cross multiply
    11,491.20x = 17,241.60 × 3,702.40
  4. Step 4: Simplify right side
    11,491.20x = 63,835,299.84
  5. Step 5: Solve for x
    x = 63,835,299.84/11,491.20
  6. Step 6: Final answer
    x = 5,555.15

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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.