Home / 21,786.23-32,665.71-9,132.58

Finding the Fourth Proportional to 21,786.23, 32,665.71 and 9,132.58

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Solution

The fourth proportional to 21,786.23, 32,665.71 and 9,132.58 is: 13,693.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.23 : 32,665.71 = 9,132.58 : x
  2. Step 2: Convert to fraction form
    21,786.23/32,665.71 = 9,132.58/x
  3. Step 3: Cross multiply
    21,786.23x = 32,665.71 × 9,132.58
  4. Step 4: Simplify right side
    21,786.23x = 298,322,284.91
  5. Step 5: Solve for x
    x = 298,322,284.91/21,786.23
  6. Step 6: Final answer
    x = 13,693.16

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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.