Home / 11,488.80-17,241.84-7,782.24

Finding the Fourth Proportional to 11,488.80, 17,241.84 and 7,782.24

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Solution

The fourth proportional to 11,488.80, 17,241.84 and 7,782.24 is: 11,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,488.80 : 17,241.84 = 7,782.24 : x
  2. Step 2: Convert to fraction form
    11,488.80/17,241.84 = 7,782.24/x
  3. Step 3: Cross multiply
    11,488.80x = 17,241.84 × 7,782.24
  4. Step 4: Simplify right side
    11,488.80x = 134,180,136.92
  5. Step 5: Solve for x
    x = 134,180,136.92/11,488.80
  6. Step 6: Final answer
    x = 11,679.21

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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.