Home / 18,664.32-25,748.08-11,106.42

Finding the Fourth Proportional to 18,664.32, 25,748.08 and 11,106.42

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Solution

The fourth proportional to 18,664.32, 25,748.08 and 11,106.42 is: 15,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.32 : 25,748.08 = 11,106.42 : x
  2. Step 2: Convert to fraction form
    18,664.32/25,748.08 = 11,106.42/x
  3. Step 3: Cross multiply
    18,664.32x = 25,748.08 × 11,106.42
  4. Step 4: Simplify right side
    18,664.32x = 285,968,866.35
  5. Step 5: Solve for x
    x = 285,968,866.35/18,664.32
  6. Step 6: Final answer
    x = 15,321.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.