Home / 11,420.37-17,136.24-7,714.47

Finding the Fourth Proportional to 11,420.37, 17,136.24 and 7,714.47

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Solution

The fourth proportional to 11,420.37, 17,136.24 and 7,714.47 is: 11,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.37 : 17,136.24 = 7,714.47 : x
  2. Step 2: Convert to fraction form
    11,420.37/17,136.24 = 7,714.47/x
  3. Step 3: Cross multiply
    11,420.37x = 17,136.24 × 7,714.47
  4. Step 4: Simplify right side
    11,420.37x = 132,197,009.39
  5. Step 5: Solve for x
    x = 132,197,009.39/11,420.37
  6. Step 6: Final answer
    x = 11,575.55

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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.