Home / 11,748.40-17,653.80-6,487.60

Finding the Fourth Proportional to 11,748.40, 17,653.80 and 6,487.60

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Solution

The fourth proportional to 11,748.40, 17,653.80 and 6,487.60 is: 9,748.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,748.40 : 17,653.80 = 6,487.60 : x
  2. Step 2: Convert to fraction form
    11,748.40/17,653.80 = 6,487.60/x
  3. Step 3: Cross multiply
    11,748.40x = 17,653.80 × 6,487.60
  4. Step 4: Simplify right side
    11,748.40x = 114,530,792.88
  5. Step 5: Solve for x
    x = 114,530,792.88/11,748.40
  6. Step 6: Final answer
    x = 9,748.63

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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.